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Finding the Fourth Proportional to 159,700.60, 239,550.90 and 89,570.80

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Solution

The fourth proportional to 159,700.60, 239,550.90 and 89,570.80 is: 134,356.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,700.60 : 239,550.90 = 89,570.80 : x
  2. Step 2: Convert to fraction form
    159,700.60/239,550.90 = 89,570.80/x
  3. Step 3: Cross multiply
    159,700.60x = 239,550.90 × 89,570.80
  4. Step 4: Simplify right side
    159,700.60x = 21,456,765,753.72
  5. Step 5: Solve for x
    x = 21,456,765,753.72/159,700.60
  6. Step 6: Final answer
    x = 134,356.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.