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Finding the Fourth Proportional to 132,646.80, 198,532.80 and 93,280.80

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Solution

The fourth proportional to 132,646.80, 198,532.80 and 93,280.80 is: 139,613.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,646.80 : 198,532.80 = 93,280.80 : x
  2. Step 2: Convert to fraction form
    132,646.80/198,532.80 = 93,280.80/x
  3. Step 3: Cross multiply
    132,646.80x = 198,532.80 × 93,280.80
  4. Step 4: Simplify right side
    132,646.80x = 18,519,298,410.24
  5. Step 5: Solve for x
    x = 18,519,298,410.24/132,646.80
  6. Step 6: Final answer
    x = 139,613.61

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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.