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Finding the Fourth Proportional to 159,887.76, 220,643.78 and 88,266.25

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Solution

The fourth proportional to 159,887.76, 220,643.78 and 88,266.25 is: 121,806.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,887.76 : 220,643.78 = 88,266.25 : x
  2. Step 2: Convert to fraction form
    159,887.76/220,643.78 = 88,266.25/x
  3. Step 3: Cross multiply
    159,887.76x = 220,643.78 × 88,266.25
  4. Step 4: Simplify right side
    159,887.76x = 19,475,399,046.43
  5. Step 5: Solve for x
    x = 19,475,399,046.43/159,887.76
  6. Step 6: Final answer
    x = 121,806.69

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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.