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Finding the Fourth Proportional to 191,480,859, 287,221,294.98 and 47,873,691

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Solution

The fourth proportional to 191,480,859, 287,221,294.98 and 47,873,691 is: 71,810,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,480,859 : 287,221,294.98 = 47,873,691 : x
  2. Step 2: Convert to fraction form
    191,480,859/287,221,294.98 = 47,873,691/x
  3. Step 3: Cross multiply
    191,480,859x = 287,221,294.98 × 47,873,691
  4. Step 4: Simplify right side
    191,480,859x = 13,750,343,524,492,372
  5. Step 5: Solve for x
    x = 13,750,343,524,492,372/191,480,859
  6. Step 6: Final answer
    x = 71,810,538.12

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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.