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Finding the Fourth Proportional to 132,418.01, 198,564.57 and 48,118.88

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Solution

The fourth proportional to 132,418.01, 198,564.57 and 48,118.88 is: 72,155.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,418.01 : 198,564.57 = 48,118.88 : x
  2. Step 2: Convert to fraction form
    132,418.01/198,564.57 = 48,118.88/x
  3. Step 3: Cross multiply
    132,418.01x = 198,564.57 × 48,118.88
  4. Step 4: Simplify right side
    132,418.01x = 9,554,703,723.26
  5. Step 5: Solve for x
    x = 9,554,703,723.26/132,418.01
  6. Step 6: Final answer
    x = 72,155.62

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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.