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Finding the Fourth Proportional to 372,890.70, 559,530.45 and 162,549.90

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Solution

The fourth proportional to 372,890.70, 559,530.45 and 162,549.90 is: 243,909.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,890.70 : 559,530.45 = 162,549.90 : x
  2. Step 2: Convert to fraction form
    372,890.70/559,530.45 = 162,549.90/x
  3. Step 3: Cross multiply
    372,890.70x = 559,530.45 × 162,549.90
  4. Step 4: Simplify right side
    372,890.70x = 90,951,618,694.46
  5. Step 5: Solve for x
    x = 90,951,618,694.46/372,890.70
  6. Step 6: Final answer
    x = 243,909.59

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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.