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Finding the Fourth Proportional to 159,696.20, 220,379.07 and 88,074.68

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Solution

The fourth proportional to 159,696.20, 220,379.07 and 88,074.68 is: 121,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,696.20 : 220,379.07 = 88,074.68 : x
  2. Step 2: Convert to fraction form
    159,696.20/220,379.07 = 88,074.68/x
  3. Step 3: Cross multiply
    159,696.20x = 220,379.07 × 88,074.68
  4. Step 4: Simplify right side
    159,696.20x = 19,409,814,967.05
  5. Step 5: Solve for x
    x = 19,409,814,967.05/159,696.20
  6. Step 6: Final answer
    x = 121,542.13

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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.