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Finding the Fourth Proportional to 162,699.95, 224,524.20 and 91,080.56

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Solution

The fourth proportional to 162,699.95, 224,524.20 and 91,080.56 is: 125,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,699.95 : 224,524.20 = 91,080.56 : x
  2. Step 2: Convert to fraction form
    162,699.95/224,524.20 = 91,080.56/x
  3. Step 3: Cross multiply
    162,699.95x = 224,524.20 × 91,080.56
  4. Step 4: Simplify right side
    162,699.95x = 20,449,789,869.55
  5. Step 5: Solve for x
    x = 20,449,789,869.55/162,699.95
  6. Step 6: Final answer
    x = 125,690.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.