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Finding the Fourth Proportional to 132,472.79, 182,814.06 and 72,044.97

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Solution

The fourth proportional to 132,472.79, 182,814.06 and 72,044.97 is: 99,422.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,472.79 : 182,814.06 = 72,044.97 : x
  2. Step 2: Convert to fraction form
    132,472.79/182,814.06 = 72,044.97/x
  3. Step 3: Cross multiply
    132,472.79x = 182,814.06 × 72,044.97
  4. Step 4: Simplify right side
    132,472.79x = 13,170,833,468.28
  5. Step 5: Solve for x
    x = 13,170,833,468.28/132,472.79
  6. Step 6: Final answer
    x = 99,422.93

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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.