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Finding the Fourth Proportional to 277,327.55, 415,711.06 and 108,781.86

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Solution

The fourth proportional to 277,327.55, 415,711.06 and 108,781.86 is: 163,062.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,327.55 : 415,711.06 = 108,781.86 : x
  2. Step 2: Convert to fraction form
    277,327.55/415,711.06 = 108,781.86/x
  3. Step 3: Cross multiply
    277,327.55x = 415,711.06 × 108,781.86
  4. Step 4: Simplify right side
    277,327.55x = 45,221,822,753.10
  5. Step 5: Solve for x
    x = 45,221,822,753.10/277,327.55
  6. Step 6: Final answer
    x = 163,062.86

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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.