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Finding the Fourth Proportional to 162,053.80, 243,069.18 and 43,731.88

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Solution

The fourth proportional to 162,053.80, 243,069.18 and 43,731.88 is: 65,594.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,053.80 : 243,069.18 = 43,731.88 : x
  2. Step 2: Convert to fraction form
    162,053.80/243,069.18 = 43,731.88/x
  3. Step 3: Cross multiply
    162,053.80x = 243,069.18 × 43,731.88
  4. Step 4: Simplify right side
    162,053.80x = 10,629,872,211.46
  5. Step 5: Solve for x
    x = 10,629,872,211.46/162,053.80
  6. Step 6: Final answer
    x = 65,594.71

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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.