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Finding the Fourth Proportional to 158,759.76, 238,139.63 and 47,951.76

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Solution

The fourth proportional to 158,759.76, 238,139.63 and 47,951.76 is: 71,927.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,759.76 : 238,139.63 = 47,951.76 : x
  2. Step 2: Convert to fraction form
    158,759.76/238,139.63 = 47,951.76/x
  3. Step 3: Cross multiply
    158,759.76x = 238,139.63 × 47,951.76
  4. Step 4: Simplify right side
    158,759.76x = 11,419,214,384.25
  5. Step 5: Solve for x
    x = 11,419,214,384.25/158,759.76
  6. Step 6: Final answer
    x = 71,927.64

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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.