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Finding the Fourth Proportional to 363,440.33, 545,222.78 and 123,528.86

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Solution

The fourth proportional to 363,440.33, 545,222.78 and 123,528.86 is: 185,314.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,440.33 : 545,222.78 = 123,528.86 : x
  2. Step 2: Convert to fraction form
    363,440.33/545,222.78 = 123,528.86/x
  3. Step 3: Cross multiply
    363,440.33x = 545,222.78 × 123,528.86
  4. Step 4: Simplify right side
    363,440.33x = 67,350,747,841.79
  5. Step 5: Solve for x
    x = 67,350,747,841.79/363,440.33
  6. Step 6: Final answer
    x = 185,314.46

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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.