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Finding the Fourth Proportional to 132,351.88, 198,564.88 and 53,521.47

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Solution

The fourth proportional to 132,351.88, 198,564.88 and 53,521.47 is: 80,297.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,351.88 : 198,564.88 = 53,521.47 : x
  2. Step 2: Convert to fraction form
    132,351.88/198,564.88 = 53,521.47/x
  3. Step 3: Cross multiply
    132,351.88x = 198,564.88 × 53,521.47
  4. Step 4: Simplify right side
    132,351.88x = 10,627,484,267.97
  5. Step 5: Solve for x
    x = 10,627,484,267.97/132,351.88
  6. Step 6: Final answer
    x = 80,297.19

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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.