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Finding the Fourth Proportional to 127,791.96, 176,352.03 and 71,203.74

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Solution

The fourth proportional to 127,791.96, 176,352.03 and 71,203.74 is: 98,260.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,791.96 : 176,352.03 = 71,203.74 : x
  2. Step 2: Convert to fraction form
    127,791.96/176,352.03 = 71,203.74/x
  3. Step 3: Cross multiply
    127,791.96x = 176,352.03 × 71,203.74
  4. Step 4: Simplify right side
    127,791.96x = 12,556,924,092.59
  5. Step 5: Solve for x
    x = 12,556,924,092.59/127,791.96
  6. Step 6: Final answer
    x = 98,260.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.