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Finding the Fourth Proportional to 191,565.66, 287,414.13 and 73,270.83

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Solution

The fourth proportional to 191,565.66, 287,414.13 and 73,270.83 is: 109,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,565.66 : 287,414.13 = 73,270.83 : x
  2. Step 2: Convert to fraction form
    191,565.66/287,414.13 = 73,270.83/x
  3. Step 3: Cross multiply
    191,565.66x = 287,414.13 × 73,270.83
  4. Step 4: Simplify right side
    191,565.66x = 21,059,072,133.59
  5. Step 5: Solve for x
    x = 21,059,072,133.59/191,565.66
  6. Step 6: Final answer
    x = 109,931.35

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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.