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Finding the Fourth Proportional to 86,920,402,523.20, 130,380,603,784.80 and 86,920,402,523.20

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Solution

The fourth proportional to 86,920,402,523.20, 130,380,603,784.80 and 86,920,402,523.20 is: 130,380,603,784.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,920,402,523.20 : 130,380,603,784.80 = 86,920,402,523.20 : x
  2. Step 2: Convert to fraction form
    86,920,402,523.20/130,380,603,784.80 = 86,920,402,523.20/x
  3. Step 3: Cross multiply
    86,920,402,523.20x = 130,380,603,784.80 × 86,920,402,523.20
  4. Step 4: Simplify right side
    86,920,402,523.20x = 11,332,734,562,192,668,491,776
  5. Step 5: Solve for x
    x = 11,332,734,562,192,668,491,776/86,920,402,523.20
  6. Step 6: Final answer
    x = 130,380,603,784.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.