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Finding the Fourth Proportional to 362,217.80, 542,937.90 and 137,491.40

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Solution

The fourth proportional to 362,217.80, 542,937.90 and 137,491.40 is: 206,089.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,217.80 : 542,937.90 = 137,491.40 : x
  2. Step 2: Convert to fraction form
    362,217.80/542,937.90 = 137,491.40/x
  3. Step 3: Cross multiply
    362,217.80x = 542,937.90 × 137,491.40
  4. Step 4: Simplify right side
    362,217.80x = 74,649,291,984.06
  5. Step 5: Solve for x
    x = 74,649,291,984.06/362,217.80
  6. Step 6: Final answer
    x = 206,089.52

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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.