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Finding the Fourth Proportional to 176,342.41, 243,367.56 and 99,874.90

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Solution

The fourth proportional to 176,342.41, 243,367.56 and 99,874.90 is: 137,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,342.41 : 243,367.56 = 99,874.90 : x
  2. Step 2: Convert to fraction form
    176,342.41/243,367.56 = 99,874.90/x
  3. Step 3: Cross multiply
    176,342.41x = 243,367.56 × 99,874.90
  4. Step 4: Simplify right side
    176,342.41x = 24,306,310,718.24
  5. Step 5: Solve for x
    x = 24,306,310,718.24/176,342.41
  6. Step 6: Final answer
    x = 137,835.88

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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.