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Finding the Fourth Proportional to 240,831.98, 361,234.08 and 72,348.69

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Solution

The fourth proportional to 240,831.98, 361,234.08 and 72,348.69 is: 108,518.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,831.98 : 361,234.08 = 72,348.69 : x
  2. Step 2: Convert to fraction form
    240,831.98/361,234.08 = 72,348.69/x
  3. Step 3: Cross multiply
    240,831.98x = 361,234.08 × 72,348.69
  4. Step 4: Simplify right side
    240,831.98x = 26,134,813,825.98
  5. Step 5: Solve for x
    x = 26,134,813,825.98/240,831.98
  6. Step 6: Final answer
    x = 108,518.87

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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.