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Finding the Fourth Proportional to 147,302.25, 220,913.05 and 40,660.71

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Solution

The fourth proportional to 147,302.25, 220,913.05 and 40,660.71 is: 60,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,302.25 : 220,913.05 = 40,660.71 : x
  2. Step 2: Convert to fraction form
    147,302.25/220,913.05 = 40,660.71/x
  3. Step 3: Cross multiply
    147,302.25x = 220,913.05 × 40,660.71
  4. Step 4: Simplify right side
    147,302.25x = 8,982,481,461.27
  5. Step 5: Solve for x
    x = 8,982,481,461.27/147,302.25
  6. Step 6: Final answer
    x = 60,979.93

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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.