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Finding the Fourth Proportional to 159,967.57, 220,751.02 and 88,346.05

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Solution

The fourth proportional to 159,967.57, 220,751.02 and 88,346.05 is: 121,915.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,967.57 : 220,751.02 = 88,346.05 : x
  2. Step 2: Convert to fraction form
    159,967.57/220,751.02 = 88,346.05/x
  3. Step 3: Cross multiply
    159,967.57x = 220,751.02 × 88,346.05
  4. Step 4: Simplify right side
    159,967.57x = 19,502,479,877.73
  5. Step 5: Solve for x
    x = 19,502,479,877.73/159,967.57
  6. Step 6: Final answer
    x = 121,915.21

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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.