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Finding the Fourth Proportional to 238,291.40, 356,892.72 and 113,719.88

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Solution

The fourth proportional to 238,291.40, 356,892.72 and 113,719.88 is: 170,320.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,291.40 : 356,892.72 = 113,719.88 : x
  2. Step 2: Convert to fraction form
    238,291.40/356,892.72 = 113,719.88/x
  3. Step 3: Cross multiply
    238,291.40x = 356,892.72 × 113,719.88
  4. Step 4: Simplify right side
    238,291.40x = 40,585,797,291.27
  5. Step 5: Solve for x
    x = 40,585,797,291.27/238,291.40
  6. Step 6: Final answer
    x = 170,320.03

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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.