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Finding the Fourth Proportional to 191,789,843.40, 287,712,758.70 and 62,375,430.60

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Solution

The fourth proportional to 191,789,843.40, 287,712,758.70 and 62,375,430.60 is: 93,572,250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,789,843.40 : 287,712,758.70 = 62,375,430.60 : x
  2. Step 2: Convert to fraction form
    191,789,843.40/287,712,758.70 = 62,375,430.60/x
  3. Step 3: Cross multiply
    191,789,843.40x = 287,712,758.70 × 62,375,430.60
  4. Step 4: Simplify right side
    191,789,843.40x = 17,946,207,213,026,396
  5. Step 5: Solve for x
    x = 17,946,207,213,026,396/191,789,843.40
  6. Step 6: Final answer
    x = 93,572,250.20

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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.