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Finding the Fourth Proportional to 132,686.80, 198,592.80 and 93,320.80

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Solution

The fourth proportional to 132,686.80, 198,592.80 and 93,320.80 is: 139,673.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,686.80 : 198,592.80 = 93,320.80 : x
  2. Step 2: Convert to fraction form
    132,686.80/198,592.80 = 93,320.80/x
  3. Step 3: Cross multiply
    132,686.80x = 198,592.80 × 93,320.80
  4. Step 4: Simplify right side
    132,686.80x = 18,532,838,970.24
  5. Step 5: Solve for x
    x = 18,532,838,970.24/132,686.80
  6. Step 6: Final answer
    x = 139,673.57

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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.