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Finding the Fourth Proportional to 259,967.28, 389,950.92 and 93,755.28

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Solution

The fourth proportional to 259,967.28, 389,950.92 and 93,755.28 is: 140,632.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,967.28 : 389,950.92 = 93,755.28 : x
  2. Step 2: Convert to fraction form
    259,967.28/389,950.92 = 93,755.28/x
  3. Step 3: Cross multiply
    259,967.28x = 389,950.92 × 93,755.28
  4. Step 4: Simplify right side
    259,967.28x = 36,559,957,690.86
  5. Step 5: Solve for x
    x = 36,559,957,690.86/259,967.28
  6. Step 6: Final answer
    x = 140,632.92

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Similar ratio
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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.