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Finding the Fourth Proportional to 147,217.80, 220,830.30 and 53,723.52

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Solution

The fourth proportional to 147,217.80, 220,830.30 and 53,723.52 is: 80,586.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,217.80 : 220,830.30 = 53,723.52 : x
  2. Step 2: Convert to fraction form
    147,217.80/220,830.30 = 53,723.52/x
  3. Step 3: Cross multiply
    147,217.80x = 220,830.30 × 53,723.52
  4. Step 4: Simplify right side
    147,217.80x = 11,863,781,038.66
  5. Step 5: Solve for x
    x = 11,863,781,038.66/147,217.80
  6. Step 6: Final answer
    x = 80,586.59

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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.