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Finding the Fourth Proportional to 170,851.80, 255,672.90 and 148,906.20

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Solution

The fourth proportional to 170,851.80, 255,672.90 and 148,906.20 is: 222,832.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,851.80 : 255,672.90 = 148,906.20 : x
  2. Step 2: Convert to fraction form
    170,851.80/255,672.90 = 148,906.20/x
  3. Step 3: Cross multiply
    170,851.80x = 255,672.90 × 148,906.20
  4. Step 4: Simplify right side
    170,851.80x = 38,071,279,981.98
  5. Step 5: Solve for x
    x = 38,071,279,981.98/170,851.80
  6. Step 6: Final answer
    x = 222,832.19

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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.