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Finding the Fourth Proportional to 160,700.80, 221,752.20 and 89,074.73

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Solution

The fourth proportional to 160,700.80, 221,752.20 and 89,074.73 is: 122,914.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,700.80 : 221,752.20 = 89,074.73 : x
  2. Step 2: Convert to fraction form
    160,700.80/221,752.20 = 89,074.73/x
  3. Step 3: Cross multiply
    160,700.80x = 221,752.20 × 89,074.73
  4. Step 4: Simplify right side
    160,700.80x = 19,752,517,341.91
  5. Step 5: Solve for x
    x = 19,752,517,341.91/160,700.80
  6. Step 6: Final answer
    x = 122,914.87

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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.