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Finding the Fourth Proportional to 331,909.92, 497,418.48 and 181,925.28

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Solution

The fourth proportional to 331,909.92, 497,418.48 and 181,925.28 is: 272,643.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,909.92 : 497,418.48 = 181,925.28 : x
  2. Step 2: Convert to fraction form
    331,909.92/497,418.48 = 181,925.28/x
  3. Step 3: Cross multiply
    331,909.92x = 497,418.48 × 181,925.28
  4. Step 4: Simplify right side
    331,909.92x = 90,492,996,251.17
  5. Step 5: Solve for x
    x = 90,492,996,251.17/331,909.92
  6. Step 6: Final answer
    x = 272,643.24

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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.