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Finding the Fourth Proportional to 125,932.32, 188,680.32 and 88,421.04

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Solution

The fourth proportional to 125,932.32, 188,680.32 and 88,421.04 is: 132,478.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,932.32 : 188,680.32 = 88,421.04 : x
  2. Step 2: Convert to fraction form
    125,932.32/188,680.32 = 88,421.04/x
  3. Step 3: Cross multiply
    125,932.32x = 188,680.32 × 88,421.04
  4. Step 4: Simplify right side
    125,932.32x = 16,683,310,121.93
  5. Step 5: Solve for x
    x = 16,683,310,121.93/125,932.32
  6. Step 6: Final answer
    x = 132,478.38

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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.