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Finding the Fourth Proportional to 274,499,129.20, 411,748,693.80 and 92,743,682.80

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Solution

The fourth proportional to 274,499,129.20, 411,748,693.80 and 92,743,682.80 is: 139,115,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,499,129.20 : 411,748,693.80 = 92,743,682.80 : x
  2. Step 2: Convert to fraction form
    274,499,129.20/411,748,693.80 = 92,743,682.80/x
  3. Step 3: Cross multiply
    274,499,129.20x = 411,748,693.80 × 92,743,682.80
  4. Step 4: Simplify right side
    274,499,129.20x = 38,187,090,251,101,528
  5. Step 5: Solve for x
    x = 38,187,090,251,101,528/274,499,129.20
  6. Step 6: Final answer
    x = 139,115,524.20

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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.