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Finding the Fourth Proportional to 118,079.37, 176,921.82 and 82,956.15

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Solution

The fourth proportional to 118,079.37, 176,921.82 and 82,956.15 is: 124,295.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,079.37 : 176,921.82 = 82,956.15 : x
  2. Step 2: Convert to fraction form
    118,079.37/176,921.82 = 82,956.15/x
  3. Step 3: Cross multiply
    118,079.37x = 176,921.82 × 82,956.15
  4. Step 4: Simplify right side
    118,079.37x = 14,676,753,038.19
  5. Step 5: Solve for x
    x = 14,676,753,038.19/118,079.37
  6. Step 6: Final answer
    x = 124,295.66

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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.