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Finding the Fourth Proportional to 159,646.66, 220,292.13 and 99,227.14

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Solution

The fourth proportional to 159,646.66, 220,292.13 and 99,227.14 is: 136,920.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,646.66 : 220,292.13 = 99,227.14 : x
  2. Step 2: Convert to fraction form
    159,646.66/220,292.13 = 99,227.14/x
  3. Step 3: Cross multiply
    159,646.66x = 220,292.13 × 99,227.14
  4. Step 4: Simplify right side
    159,646.66x = 21,858,958,024.41
  5. Step 5: Solve for x
    x = 21,858,958,024.41/159,646.66
  6. Step 6: Final answer
    x = 136,920.86

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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.