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Finding the Fourth Proportional to 238,606.05, 357,890.46 and 138,702.52

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Solution

The fourth proportional to 238,606.05, 357,890.46 and 138,702.52 is: 208,042.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,606.05 : 357,890.46 = 138,702.52 : x
  2. Step 2: Convert to fraction form
    238,606.05/357,890.46 = 138,702.52/x
  3. Step 3: Cross multiply
    238,606.05x = 357,890.46 × 138,702.52
  4. Step 4: Simplify right side
    238,606.05x = 49,640,306,202.99
  5. Step 5: Solve for x
    x = 49,640,306,202.99/238,606.05
  6. Step 6: Final answer
    x = 208,042.95

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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.