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Finding the Fourth Proportional to 170,407.20, 255,610.80 and 144,163.20

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Solution

The fourth proportional to 170,407.20, 255,610.80 and 144,163.20 is: 216,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,407.20 : 255,610.80 = 144,163.20 : x
  2. Step 2: Convert to fraction form
    170,407.20/255,610.80 = 144,163.20/x
  3. Step 3: Cross multiply
    170,407.20x = 255,610.80 × 144,163.20
  4. Step 4: Simplify right side
    170,407.20x = 36,849,670,882.56
  5. Step 5: Solve for x
    x = 36,849,670,882.56/170,407.20
  6. Step 6: Final answer
    x = 216,244.80

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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.