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Finding the Fourth Proportional to 132,888.34, 199,332.52 and 54,008.72

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Solution

The fourth proportional to 132,888.34, 199,332.52 and 54,008.72 is: 81,013.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,888.34 : 199,332.52 = 54,008.72 : x
  2. Step 2: Convert to fraction form
    132,888.34/199,332.52 = 54,008.72/x
  3. Step 3: Cross multiply
    132,888.34x = 199,332.52 × 54,008.72
  4. Step 4: Simplify right side
    132,888.34x = 10,765,694,259.57
  5. Step 5: Solve for x
    x = 10,765,694,259.57/132,888.34
  6. Step 6: Final answer
    x = 81,013.08

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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.