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Finding the Fourth Proportional to 527,031.55, 790,481.85 and 147,982.06

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Solution

The fourth proportional to 527,031.55, 790,481.85 and 147,982.06 is: 221,954.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,031.55 : 790,481.85 = 147,982.06 : x
  2. Step 2: Convert to fraction form
    527,031.55/790,481.85 = 147,982.06/x
  3. Step 3: Cross multiply
    527,031.55x = 790,481.85 × 147,982.06
  4. Step 4: Simplify right side
    527,031.55x = 116,977,132,555.61
  5. Step 5: Solve for x
    x = 116,977,132,555.61/527,031.55
  6. Step 6: Final answer
    x = 221,954.71

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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.