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Finding the Fourth Proportional to 44,465.60, 66,640.80 and 32,139.20

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Solution

The fourth proportional to 44,465.60, 66,640.80 and 32,139.20 is: 48,167.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,465.60 : 66,640.80 = 32,139.20 : x
  2. Step 2: Convert to fraction form
    44,465.60/66,640.80 = 32,139.20/x
  3. Step 3: Cross multiply
    44,465.60x = 66,640.80 × 32,139.20
  4. Step 4: Simplify right side
    44,465.60x = 2,141,781,999.36
  5. Step 5: Solve for x
    x = 2,141,781,999.36/44,465.60
  6. Step 6: Final answer
    x = 48,167.17

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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.