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Finding the Fourth Proportional to 159,663.54, 239,425.77 and 45,786.18

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Solution

The fourth proportional to 159,663.54, 239,425.77 and 45,786.18 is: 68,659.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,663.54 : 239,425.77 = 45,786.18 : x
  2. Step 2: Convert to fraction form
    159,663.54/239,425.77 = 45,786.18/x
  3. Step 3: Cross multiply
    159,663.54x = 239,425.77 × 45,786.18
  4. Step 4: Simplify right side
    159,663.54x = 10,962,391,401.86
  5. Step 5: Solve for x
    x = 10,962,391,401.86/159,663.54
  6. Step 6: Final answer
    x = 68,659.33

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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.