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Finding the Fourth Proportional to 238,290.65, 356,891.60 and 113,719.13

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Solution

The fourth proportional to 238,290.65, 356,891.60 and 113,719.13 is: 170,318.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,290.65 : 356,891.60 = 113,719.13 : x
  2. Step 2: Convert to fraction form
    238,290.65/356,891.60 = 113,719.13/x
  3. Step 3: Cross multiply
    238,290.65x = 356,891.60 × 113,719.13
  4. Step 4: Simplify right side
    238,290.65x = 40,585,401,687.71
  5. Step 5: Solve for x
    x = 40,585,401,687.71/238,290.65
  6. Step 6: Final answer
    x = 170,318.90

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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.