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Finding the Fourth Proportional to 127,886.74, 191,849.85 and 43,627.17

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Solution

The fourth proportional to 127,886.74, 191,849.85 and 43,627.17 is: 65,447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,886.74 : 191,849.85 = 43,627.17 : x
  2. Step 2: Convert to fraction form
    127,886.74/191,849.85 = 43,627.17/x
  3. Step 3: Cross multiply
    127,886.74x = 191,849.85 × 43,627.17
  4. Step 4: Simplify right side
    127,886.74x = 8,369,866,020.42
  5. Step 5: Solve for x
    x = 8,369,866,020.42/127,886.74
  6. Step 6: Final answer
    x = 65,447.49

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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.