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Finding the Fourth Proportional to 162,813.80, 244,220.70 and 103,691.90

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Solution

The fourth proportional to 162,813.80, 244,220.70 and 103,691.90 is: 155,537.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,813.80 : 244,220.70 = 103,691.90 : x
  2. Step 2: Convert to fraction form
    162,813.80/244,220.70 = 103,691.90/x
  3. Step 3: Cross multiply
    162,813.80x = 244,220.70 × 103,691.90
  4. Step 4: Simplify right side
    162,813.80x = 25,323,708,402.33
  5. Step 5: Solve for x
    x = 25,323,708,402.33/162,813.80
  6. Step 6: Final answer
    x = 155,537.85

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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.