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Finding the Fourth Proportional to 125,691,751.80, 188,537,627.70 and 34,815,340.80

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Solution

The fourth proportional to 125,691,751.80, 188,537,627.70 and 34,815,340.80 is: 52,223,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,691,751.80 : 188,537,627.70 = 34,815,340.80 : x
  2. Step 2: Convert to fraction form
    125,691,751.80/188,537,627.70 = 34,815,340.80/x
  3. Step 3: Cross multiply
    125,691,751.80x = 188,537,627.70 × 34,815,340.80
  4. Step 4: Simplify right side
    125,691,751.80x = 6,564,001,761,999,019
  5. Step 5: Solve for x
    x = 6,564,001,761,999,019/125,691,751.80
  6. Step 6: Final answer
    x = 52,223,011.20

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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.