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Finding the Fourth Proportional to 127,956.68, 191,959.61 and 49,064.75

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Solution

The fourth proportional to 127,956.68, 191,959.61 and 49,064.75 is: 73,606.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,956.68 : 191,959.61 = 49,064.75 : x
  2. Step 2: Convert to fraction form
    127,956.68/191,959.61 = 49,064.75/x
  3. Step 3: Cross multiply
    127,956.68x = 191,959.61 × 49,064.75
  4. Step 4: Simplify right side
    127,956.68x = 9,418,449,069.63
  5. Step 5: Solve for x
    x = 9,418,449,069.63/127,956.68
  6. Step 6: Final answer
    x = 73,606.55

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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.