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Finding the Fourth Proportional to 127,881.59, 191,822.11 and 34,387.43

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Solution

The fourth proportional to 127,881.59, 191,822.11 and 34,387.43 is: 51,581.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,881.59 : 191,822.11 = 34,387.43 : x
  2. Step 2: Convert to fraction form
    127,881.59/191,822.11 = 34,387.43/x
  3. Step 3: Cross multiply
    127,881.59x = 191,822.11 × 34,387.43
  4. Step 4: Simplify right side
    127,881.59x = 6,596,268,335.00
  5. Step 5: Solve for x
    x = 6,596,268,335.00/127,881.59
  6. Step 6: Final answer
    x = 51,581.06

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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.