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Finding the Fourth Proportional to 115,202.65, 158,983.02 and 67,451.53

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Solution

The fourth proportional to 115,202.65, 158,983.02 and 67,451.53 is: 93,085.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,202.65 : 158,983.02 = 67,451.53 : x
  2. Step 2: Convert to fraction form
    115,202.65/158,983.02 = 67,451.53/x
  3. Step 3: Cross multiply
    115,202.65x = 158,983.02 × 67,451.53
  4. Step 4: Simplify right side
    115,202.65x = 10,723,646,810.85
  5. Step 5: Solve for x
    x = 10,723,646,810.85/115,202.65
  6. Step 6: Final answer
    x = 93,085.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.