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Finding the Fourth Proportional to 159,470.53, 220,054.18 and 91,493.10

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Solution

The fourth proportional to 159,470.53, 220,054.18 and 91,493.10 is: 126,251.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,470.53 : 220,054.18 = 91,493.10 : x
  2. Step 2: Convert to fraction form
    159,470.53/220,054.18 = 91,493.10/x
  3. Step 3: Cross multiply
    159,470.53x = 220,054.18 × 91,493.10
  4. Step 4: Simplify right side
    159,470.53x = 20,133,439,096.16
  5. Step 5: Solve for x
    x = 20,133,439,096.16/159,470.53
  6. Step 6: Final answer
    x = 126,251.79

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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.