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Finding the Fourth Proportional to 159,887.13, 220,642.92 and 88,265.63

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Solution

The fourth proportional to 159,887.13, 220,642.92 and 88,265.63 is: 121,805.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,887.13 : 220,642.92 = 88,265.63 : x
  2. Step 2: Convert to fraction form
    159,887.13/220,642.92 = 88,265.63/x
  3. Step 3: Cross multiply
    159,887.13x = 220,642.92 × 88,265.63
  4. Step 4: Simplify right side
    159,887.13x = 19,475,185,235.63
  5. Step 5: Solve for x
    x = 19,475,185,235.63/159,887.13
  6. Step 6: Final answer
    x = 121,805.83

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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.