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Finding the Fourth Proportional to 140,355.48, 210,593.53 and 45,614.70

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Solution

The fourth proportional to 140,355.48, 210,593.53 and 45,614.70 is: 68,441.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,355.48 : 210,593.53 = 45,614.70 : x
  2. Step 2: Convert to fraction form
    140,355.48/210,593.53 = 45,614.70/x
  3. Step 3: Cross multiply
    140,355.48x = 210,593.53 × 45,614.70
  4. Step 4: Simplify right side
    140,355.48x = 9,606,160,017.20
  5. Step 5: Solve for x
    x = 9,606,160,017.20/140,355.48
  6. Step 6: Final answer
    x = 68,441.65

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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.