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Finding the Fourth Proportional to 86,057.96, 118,761.51 and 47,821.04

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Solution

The fourth proportional to 86,057.96, 118,761.51 and 47,821.04 is: 65,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,057.96 : 118,761.51 = 47,821.04 : x
  2. Step 2: Convert to fraction form
    86,057.96/118,761.51 = 47,821.04/x
  3. Step 3: Cross multiply
    86,057.96x = 118,761.51 × 47,821.04
  4. Step 4: Simplify right side
    86,057.96x = 5,679,298,920.17
  5. Step 5: Solve for x
    x = 5,679,298,920.17/86,057.96
  6. Step 6: Final answer
    x = 65,993.88

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1.5x scale

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.