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Finding the Fourth Proportional to 52,765,390.20, 79,148,085.30 and 52,765,390.20

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Solution

The fourth proportional to 52,765,390.20, 79,148,085.30 and 52,765,390.20 is: 79,148,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,765,390.20 : 79,148,085.30 = 52,765,390.20 : x
  2. Step 2: Convert to fraction form
    52,765,390.20/79,148,085.30 = 52,765,390.20/x
  3. Step 3: Cross multiply
    52,765,390.20x = 79,148,085.30 × 52,765,390.20
  4. Step 4: Simplify right side
    52,765,390.20x = 4,176,279,604,437,384
  5. Step 5: Solve for x
    x = 4,176,279,604,437,384/52,765,390.20
  6. Step 6: Final answer
    x = 79,148,085.30

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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.