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Finding the Fourth Proportional to 127,711.82, 191,611.49 and 48,848.60

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Solution

The fourth proportional to 127,711.82, 191,611.49 and 48,848.60 is: 73,289.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,711.82 : 191,611.49 = 48,848.60 : x
  2. Step 2: Convert to fraction form
    127,711.82/191,611.49 = 48,848.60/x
  3. Step 3: Cross multiply
    127,711.82x = 191,611.49 × 48,848.60
  4. Step 4: Simplify right side
    127,711.82x = 9,359,951,828.11
  5. Step 5: Solve for x
    x = 9,359,951,828.11/127,711.82
  6. Step 6: Final answer
    x = 73,289.63

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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.