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Finding the Fourth Proportional to 358,738.74, 538,034.67 and 134,057.70

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Solution

The fourth proportional to 358,738.74, 538,034.67 and 134,057.70 is: 201,059.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,738.74 : 538,034.67 = 134,057.70 : x
  2. Step 2: Convert to fraction form
    358,738.74/538,034.67 = 134,057.70/x
  3. Step 3: Cross multiply
    358,738.74x = 538,034.67 × 134,057.70
  4. Step 4: Simplify right side
    358,738.74x = 72,127,690,380.46
  5. Step 5: Solve for x
    x = 72,127,690,380.46/358,738.74
  6. Step 6: Final answer
    x = 201,059.11

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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.