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Finding the Fourth Proportional to 132,621.40, 199,029.30 and 88,233.40

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Solution

The fourth proportional to 132,621.40, 199,029.30 and 88,233.40 is: 132,414.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,621.40 : 199,029.30 = 88,233.40 : x
  2. Step 2: Convert to fraction form
    132,621.40/199,029.30 = 88,233.40/x
  3. Step 3: Cross multiply
    132,621.40x = 199,029.30 × 88,233.40
  4. Step 4: Simplify right side
    132,621.40x = 17,561,031,838.62
  5. Step 5: Solve for x
    x = 17,561,031,838.62/132,621.40
  6. Step 6: Final answer
    x = 132,414.77

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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.