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Finding the Fourth Proportional to 85,841.44, 128,790.17 and 41,473.28

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Solution

The fourth proportional to 85,841.44, 128,790.17 and 41,473.28 is: 62,223.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,841.44 : 128,790.17 = 41,473.28 : x
  2. Step 2: Convert to fraction form
    85,841.44/128,790.17 = 41,473.28/x
  3. Step 3: Cross multiply
    85,841.44x = 128,790.17 × 41,473.28
  4. Step 4: Simplify right side
    85,841.44x = 5,341,350,781.66
  5. Step 5: Solve for x
    x = 5,341,350,781.66/85,841.44
  6. Step 6: Final answer
    x = 62,223.45

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1.5x scale

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.