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Finding the Fourth Proportional to 120,053.43, 165,671.43 and 66,337.29

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Solution

The fourth proportional to 120,053.43, 165,671.43 and 66,337.29 is: 91,544.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,053.43 : 165,671.43 = 66,337.29 : x
  2. Step 2: Convert to fraction form
    120,053.43/165,671.43 = 66,337.29/x
  3. Step 3: Cross multiply
    120,053.43x = 165,671.43 × 66,337.29
  4. Step 4: Simplify right side
    120,053.43x = 10,990,193,696.62
  5. Step 5: Solve for x
    x = 10,990,193,696.62/120,053.43
  6. Step 6: Final answer
    x = 91,544.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.