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Finding the Fourth Proportional to 359,485.43, 539,228.33 and 122,830.43

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Solution

The fourth proportional to 359,485.43, 539,228.33 and 122,830.43 is: 184,245.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,485.43 : 539,228.33 = 122,830.43 : x
  2. Step 2: Convert to fraction form
    359,485.43/539,228.33 = 122,830.43/x
  3. Step 3: Cross multiply
    359,485.43x = 539,228.33 × 122,830.43
  4. Step 4: Simplify right side
    359,485.43x = 66,233,648,836.61
  5. Step 5: Solve for x
    x = 66,233,648,836.61/359,485.43
  6. Step 6: Final answer
    x = 184,245.71

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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.