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Finding the Fourth Proportional to 237,279.20, 356,120.40 and 97,138.40

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Solution

The fourth proportional to 237,279.20, 356,120.40 and 97,138.40 is: 145,790.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,279.20 : 356,120.40 = 97,138.40 : x
  2. Step 2: Convert to fraction form
    237,279.20/356,120.40 = 97,138.40/x
  3. Step 3: Cross multiply
    237,279.20x = 356,120.40 × 97,138.40
  4. Step 4: Simplify right side
    237,279.20x = 34,592,965,863.36
  5. Step 5: Solve for x
    x = 34,592,965,863.36/237,279.20
  6. Step 6: Final answer
    x = 145,790.13

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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.