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Finding the Fourth Proportional to 238,090.40, 357,049.20 and 119,722.40

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Solution

The fourth proportional to 238,090.40, 357,049.20 and 119,722.40 is: 179,540.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,090.40 : 357,049.20 = 119,722.40 : x
  2. Step 2: Convert to fraction form
    238,090.40/357,049.20 = 119,722.40/x
  3. Step 3: Cross multiply
    238,090.40x = 357,049.20 × 119,722.40
  4. Step 4: Simplify right side
    238,090.40x = 42,746,787,142.08
  5. Step 5: Solve for x
    x = 42,746,787,142.08/238,090.40
  6. Step 6: Final answer
    x = 179,540.15

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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.