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Finding the Fourth Proportional to 124,379.92, 186,572.16 and 45,494.08

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Solution

The fourth proportional to 124,379.92, 186,572.16 and 45,494.08 is: 68,241.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,379.92 : 186,572.16 = 45,494.08 : x
  2. Step 2: Convert to fraction form
    124,379.92/186,572.16 = 45,494.08/x
  3. Step 3: Cross multiply
    124,379.92x = 186,572.16 × 45,494.08
  4. Step 4: Simplify right side
    124,379.92x = 8,487,928,772.81
  5. Step 5: Solve for x
    x = 8,487,928,772.81/124,379.92
  6. Step 6: Final answer
    x = 68,241.95

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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.