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Finding the Fourth Proportional to 127,615.70, 191,496.45 and 88,201.10

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Solution

The fourth proportional to 127,615.70, 191,496.45 and 88,201.10 is: 132,352.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,615.70 : 191,496.45 = 88,201.10 : x
  2. Step 2: Convert to fraction form
    127,615.70/191,496.45 = 88,201.10/x
  3. Step 3: Cross multiply
    127,615.70x = 191,496.45 × 88,201.10
  4. Step 4: Simplify right side
    127,615.70x = 16,890,197,536.10
  5. Step 5: Solve for x
    x = 16,890,197,536.10/127,615.70
  6. Step 6: Final answer
    x = 132,352.03

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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.