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Finding the Fourth Proportional to 132,171.65, 182,400.11 and 71,742.14

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Solution

The fourth proportional to 132,171.65, 182,400.11 and 71,742.14 is: 99,005.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,171.65 : 182,400.11 = 71,742.14 : x
  2. Step 2: Convert to fraction form
    132,171.65/182,400.11 = 71,742.14/x
  3. Step 3: Cross multiply
    132,171.65x = 182,400.11 × 71,742.14
  4. Step 4: Simplify right side
    132,171.65x = 13,085,772,956.92
  5. Step 5: Solve for x
    x = 13,085,772,956.92/132,171.65
  6. Step 6: Final answer
    x = 99,005.90

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1.5x scale

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.