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Finding the Fourth Proportional to 74,487.60, 111,731.40 and 44,963.10

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Solution

The fourth proportional to 74,487.60, 111,731.40 and 44,963.10 is: 67,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,487.60 : 111,731.40 = 44,963.10 : x
  2. Step 2: Convert to fraction form
    74,487.60/111,731.40 = 44,963.10/x
  3. Step 3: Cross multiply
    74,487.60x = 111,731.40 × 44,963.10
  4. Step 4: Simplify right side
    74,487.60x = 5,023,790,111.34
  5. Step 5: Solve for x
    x = 5,023,790,111.34/74,487.60
  6. Step 6: Final answer
    x = 67,444.65

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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.