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Finding the Fourth Proportional to 219,527.20, 328,513.20 and 149,543.20

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Solution

The fourth proportional to 219,527.20, 328,513.20 and 149,543.20 is: 223,785.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,527.20 : 328,513.20 = 149,543.20 : x
  2. Step 2: Convert to fraction form
    219,527.20/328,513.20 = 149,543.20/x
  3. Step 3: Cross multiply
    219,527.20x = 328,513.20 × 149,543.20
  4. Step 4: Simplify right side
    219,527.20x = 49,126,915,170.24
  5. Step 5: Solve for x
    x = 49,126,915,170.24/219,527.20
  6. Step 6: Final answer
    x = 223,785.09

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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.