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Finding the Fourth Proportional to 268,295.52, 402,371.28 and 127,774.56

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Solution

The fourth proportional to 268,295.52, 402,371.28 and 127,774.56 is: 191,627.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,295.52 : 402,371.28 = 127,774.56 : x
  2. Step 2: Convert to fraction form
    268,295.52/402,371.28 = 127,774.56/x
  3. Step 3: Cross multiply
    268,295.52x = 402,371.28 × 127,774.56
  4. Step 4: Simplify right side
    268,295.52x = 51,412,813,258.64
  5. Step 5: Solve for x
    x = 51,412,813,258.64/268,295.52
  6. Step 6: Final answer
    x = 191,627.55

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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.