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Finding the Fourth Proportional to 123,828.48, 185,695.20 and 60,609.60

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Solution

The fourth proportional to 123,828.48, 185,695.20 and 60,609.60 is: 90,891.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,828.48 : 185,695.20 = 60,609.60 : x
  2. Step 2: Convert to fraction form
    123,828.48/185,695.20 = 60,609.60/x
  3. Step 3: Cross multiply
    123,828.48x = 185,695.20 × 60,609.60
  4. Step 4: Simplify right side
    123,828.48x = 11,254,911,793.92
  5. Step 5: Solve for x
    x = 11,254,911,793.92/123,828.48
  6. Step 6: Final answer
    x = 90,891.14

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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.