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Finding the Fourth Proportional to 60,516.80, 90,710.40 and 27,231.20

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Solution

The fourth proportional to 60,516.80, 90,710.40 and 27,231.20 is: 40,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,516.80 : 90,710.40 = 27,231.20 : x
  2. Step 2: Convert to fraction form
    60,516.80/90,710.40 = 27,231.20/x
  3. Step 3: Cross multiply
    60,516.80x = 90,710.40 × 27,231.20
  4. Step 4: Simplify right side
    60,516.80x = 2,470,153,044.48
  5. Step 5: Solve for x
    x = 2,470,153,044.48/60,516.80
  6. Step 6: Final answer
    x = 40,817.64

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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.