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Finding the Fourth Proportional to 100,892,721.60, 151,339,082.40 and 92,283,377.40

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Solution

The fourth proportional to 100,892,721.60, 151,339,082.40 and 92,283,377.40 is: 138,425,066.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,892,721.60 : 151,339,082.40 = 92,283,377.40 : x
  2. Step 2: Convert to fraction form
    100,892,721.60/151,339,082.40 = 92,283,377.40/x
  3. Step 3: Cross multiply
    100,892,721.60x = 151,339,082.40 × 92,283,377.40
  4. Step 4: Simplify right side
    100,892,721.60x = 13,966,081,656,488,900
  5. Step 5: Solve for x
    x = 13,966,081,656,488,900/100,892,721.60
  6. Step 6: Final answer
    x = 138,425,066.10

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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.