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Finding the Fourth Proportional to 159,805.80, 240,065.10 and 133,561.80

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Solution

The fourth proportional to 159,805.80, 240,065.10 and 133,561.80 is: 200,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,805.80 : 240,065.10 = 133,561.80 : x
  2. Step 2: Convert to fraction form
    159,805.80/240,065.10 = 133,561.80/x
  3. Step 3: Cross multiply
    159,805.80x = 240,065.10 × 133,561.80
  4. Step 4: Simplify right side
    159,805.80x = 32,063,526,873.18
  5. Step 5: Solve for x
    x = 32,063,526,873.18/159,805.80
  6. Step 6: Final answer
    x = 200,640.57

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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.