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Finding the Fourth Proportional to 330,708.15, 496,061.15 and 90,822.27

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Solution

The fourth proportional to 330,708.15, 496,061.15 and 90,822.27 is: 136,233.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,708.15 : 496,061.15 = 90,822.27 : x
  2. Step 2: Convert to fraction form
    330,708.15/496,061.15 = 90,822.27/x
  3. Step 3: Cross multiply
    330,708.15x = 496,061.15 × 90,822.27
  4. Step 4: Simplify right side
    330,708.15x = 45,053,399,247.70
  5. Step 5: Solve for x
    x = 45,053,399,247.70/330,708.15
  6. Step 6: Final answer
    x = 136,233.11

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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.