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Finding the Fourth Proportional to 159,920.60, 220,689.48 and 88,300.04

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Solution

The fourth proportional to 159,920.60, 220,689.48 and 88,300.04 is: 121,853.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,920.60 : 220,689.48 = 88,300.04 : x
  2. Step 2: Convert to fraction form
    159,920.60/220,689.48 = 88,300.04/x
  3. Step 3: Cross multiply
    159,920.60x = 220,689.48 × 88,300.04
  4. Step 4: Simplify right side
    159,920.60x = 19,486,889,911.58
  5. Step 5: Solve for x
    x = 19,486,889,911.58/159,920.60
  6. Step 6: Final answer
    x = 121,853.53

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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.