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Finding the Fourth Proportional to 107,374.40, 161,191.20 and 106,596.80

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Solution

The fourth proportional to 107,374.40, 161,191.20 and 106,596.80 is: 160,023.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,374.40 : 161,191.20 = 106,596.80 : x
  2. Step 2: Convert to fraction form
    107,374.40/161,191.20 = 106,596.80/x
  3. Step 3: Cross multiply
    107,374.40x = 161,191.20 × 106,596.80
  4. Step 4: Simplify right side
    107,374.40x = 17,182,466,108.16
  5. Step 5: Solve for x
    x = 17,182,466,108.16/107,374.40
  6. Step 6: Final answer
    x = 160,023.86

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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.