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Finding the Fourth Proportional to 107,672.70, 161,574.41 and 40,253.83

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Solution

The fourth proportional to 107,672.70, 161,574.41 and 40,253.83 is: 60,405.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,672.70 : 161,574.41 = 40,253.83 : x
  2. Step 2: Convert to fraction form
    107,672.70/161,574.41 = 40,253.83/x
  3. Step 3: Cross multiply
    107,672.70x = 161,574.41 × 40,253.83
  4. Step 4: Simplify right side
    107,672.70x = 6,503,988,529.19
  5. Step 5: Solve for x
    x = 6,503,988,529.19/107,672.70
  6. Step 6: Final answer
    x = 60,405.18

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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.