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Finding the Fourth Proportional to 176,672.34, 243,764.24 and 108,700.38

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Solution

The fourth proportional to 176,672.34, 243,764.24 and 108,700.38 is: 149,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,672.34 : 243,764.24 = 108,700.38 : x
  2. Step 2: Convert to fraction form
    176,672.34/243,764.24 = 108,700.38/x
  3. Step 3: Cross multiply
    176,672.34x = 243,764.24 × 108,700.38
  4. Step 4: Simplify right side
    176,672.34x = 26,497,264,974.91
  5. Step 5: Solve for x
    x = 26,497,264,974.91/176,672.34
  6. Step 6: Final answer
    x = 149,979.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.