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Finding the Fourth Proportional to 162,649.80, 243,974.64 and 44,321.76

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Solution

The fourth proportional to 162,649.80, 243,974.64 and 44,321.76 is: 66,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,649.80 : 243,974.64 = 44,321.76 : x
  2. Step 2: Convert to fraction form
    162,649.80/243,974.64 = 44,321.76/x
  3. Step 3: Cross multiply
    162,649.80x = 243,974.64 × 44,321.76
  4. Step 4: Simplify right side
    162,649.80x = 10,813,385,440.17
  5. Step 5: Solve for x
    x = 10,813,385,440.17/162,649.80
  6. Step 6: Final answer
    x = 66,482.62

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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.