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Finding the Fourth Proportional to 159,558.71, 220,188.17 and 86,962.26

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Solution

The fourth proportional to 159,558.71, 220,188.17 and 86,962.26 is: 120,006.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,558.71 : 220,188.17 = 86,962.26 : x
  2. Step 2: Convert to fraction form
    159,558.71/220,188.17 = 86,962.26/x
  3. Step 3: Cross multiply
    159,558.71x = 220,188.17 × 86,962.26
  4. Step 4: Simplify right side
    159,558.71x = 19,148,061,105.87
  5. Step 5: Solve for x
    x = 19,148,061,105.87/159,558.71
  6. Step 6: Final answer
    x = 120,006.37

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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.