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Finding the Fourth Proportional to 162,543.31, 243,790.36 and 44,223.87

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Solution

The fourth proportional to 162,543.31, 243,790.36 and 44,223.87 is: 66,329.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,543.31 : 243,790.36 = 44,223.87 : x
  2. Step 2: Convert to fraction form
    162,543.31/243,790.36 = 44,223.87/x
  3. Step 3: Cross multiply
    162,543.31x = 243,790.36 × 44,223.87
  4. Step 4: Simplify right side
    162,543.31x = 10,781,353,991.55
  5. Step 5: Solve for x
    x = 10,781,353,991.55/162,543.31
  6. Step 6: Final answer
    x = 66,329.12

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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.