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Finding the Fourth Proportional to 124,677.60, 186,949.92 and 54,474.72

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Solution

The fourth proportional to 124,677.60, 186,949.92 and 54,474.72 is: 81,683.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,677.60 : 186,949.92 = 54,474.72 : x
  2. Step 2: Convert to fraction form
    124,677.60/186,949.92 = 54,474.72/x
  3. Step 3: Cross multiply
    124,677.60x = 186,949.92 × 54,474.72
  4. Step 4: Simplify right side
    124,677.60x = 10,184,044,546.02
  5. Step 5: Solve for x
    x = 10,184,044,546.02/124,677.60
  6. Step 6: Final answer
    x = 81,683.03

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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.