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Finding the Fourth Proportional to 107,471.55, 161,207.33 and 74,293.95

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Solution

The fourth proportional to 107,471.55, 161,207.33 and 74,293.95 is: 111,440.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,471.55 : 161,207.33 = 74,293.95 : x
  2. Step 2: Convert to fraction form
    107,471.55/161,207.33 = 74,293.95/x
  3. Step 3: Cross multiply
    107,471.55x = 161,207.33 × 74,293.95
  4. Step 4: Simplify right side
    107,471.55x = 11,976,728,943.18
  5. Step 5: Solve for x
    x = 11,976,728,943.18/107,471.55
  6. Step 6: Final answer
    x = 111,440.93

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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.