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Finding the Fourth Proportional to 170,042.80, 255,064.20 and 159,545.20

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Solution

The fourth proportional to 170,042.80, 255,064.20 and 159,545.20 is: 239,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,042.80 : 255,064.20 = 159,545.20 : x
  2. Step 2: Convert to fraction form
    170,042.80/255,064.20 = 159,545.20/x
  3. Step 3: Cross multiply
    170,042.80x = 255,064.20 × 159,545.20
  4. Step 4: Simplify right side
    170,042.80x = 40,694,268,801.84
  5. Step 5: Solve for x
    x = 40,694,268,801.84/170,042.80
  6. Step 6: Final answer
    x = 239,317.80

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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.