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Finding the Fourth Proportional to 359,486.43, 539,229.83 and 122,831.43

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Solution

The fourth proportional to 359,486.43, 539,229.83 and 122,831.43 is: 184,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,486.43 : 539,229.83 = 122,831.43 : x
  2. Step 2: Convert to fraction form
    359,486.43/539,229.83 = 122,831.43/x
  3. Step 3: Cross multiply
    359,486.43x = 539,229.83 × 122,831.43
  4. Step 4: Simplify right side
    359,486.43x = 66,234,371,117.56
  5. Step 5: Solve for x
    x = 66,234,371,117.56/359,486.43
  6. Step 6: Final answer
    x = 184,247.21

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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.