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Finding the Fourth Proportional to 351,606.30, 527,169.35 and 169,140.84

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Solution

The fourth proportional to 351,606.30, 527,169.35 and 169,140.84 is: 253,595.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,606.30 : 527,169.35 = 169,140.84 : x
  2. Step 2: Convert to fraction form
    351,606.30/527,169.35 = 169,140.84/x
  3. Step 3: Cross multiply
    351,606.30x = 527,169.35 × 169,140.84
  4. Step 4: Simplify right side
    351,606.30x = 89,165,865,835.55
  5. Step 5: Solve for x
    x = 89,165,865,835.55/351,606.30
  6. Step 6: Final answer
    x = 253,595.76

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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.