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Finding the Fourth Proportional to 541,217.80, 811,877.90 and 147,233.80

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Solution

The fourth proportional to 541,217.80, 811,877.90 and 147,233.80 is: 220,864.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,217.80 : 811,877.90 = 147,233.80 : x
  2. Step 2: Convert to fraction form
    541,217.80/811,877.90 = 147,233.80/x
  3. Step 3: Cross multiply
    541,217.80x = 811,877.90 × 147,233.80
  4. Step 4: Simplify right side
    541,217.80x = 119,535,868,353.02
  5. Step 5: Solve for x
    x = 119,535,868,353.02/541,217.80
  6. Step 6: Final answer
    x = 220,864.63

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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.