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Finding the Fourth Proportional to 53,768,087.20, 80,652,130.80 and 53,768,087.20

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Solution

The fourth proportional to 53,768,087.20, 80,652,130.80 and 53,768,087.20 is: 80,652,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,768,087.20 : 80,652,130.80 = 53,768,087.20 : x
  2. Step 2: Convert to fraction form
    53,768,087.20/80,652,130.80 = 53,768,087.20/x
  3. Step 3: Cross multiply
    53,768,087.20x = 80,652,130.80 × 53,768,087.20
  4. Step 4: Simplify right side
    53,768,087.20x = 4,336,510,801,720,206
  5. Step 5: Solve for x
    x = 4,336,510,801,720,206/53,768,087.20
  6. Step 6: Final answer
    x = 80,652,130.80

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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.