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Finding the Fourth Proportional to 668,572.65, 1,002,861.15 and 169,936.65

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Solution

The fourth proportional to 668,572.65, 1,002,861.15 and 169,936.65 is: 254,905.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,572.65 : 1,002,861.15 = 169,936.65 : x
  2. Step 2: Convert to fraction form
    668,572.65/1,002,861.15 = 169,936.65/x
  3. Step 3: Cross multiply
    668,572.65x = 1,002,861.15 × 169,936.65
  4. Step 4: Simplify right side
    668,572.65x = 170,422,864,246.15
  5. Step 5: Solve for x
    x = 170,422,864,246.15/668,572.65
  6. Step 6: Final answer
    x = 254,905.53

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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.