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Finding the Fourth Proportional to 176,609.66, 243,713.92 and 100,133.90

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Solution

The fourth proportional to 176,609.66, 243,713.92 and 100,133.90 is: 138,180.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,609.66 : 243,713.92 = 100,133.90 : x
  2. Step 2: Convert to fraction form
    176,609.66/243,713.92 = 100,133.90/x
  3. Step 3: Cross multiply
    176,609.66x = 243,713.92 × 100,133.90
  4. Step 4: Simplify right side
    176,609.66x = 24,404,025,293.89
  5. Step 5: Solve for x
    x = 24,404,025,293.89/176,609.66
  6. Step 6: Final answer
    x = 138,180.58

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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.