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Finding the Fourth Proportional to 127,375.10, 191,257.05 and 97,826.30

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Solution

The fourth proportional to 127,375.10, 191,257.05 and 97,826.30 is: 146,888.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,375.10 : 191,257.05 = 97,826.30 : x
  2. Step 2: Convert to fraction form
    127,375.10/191,257.05 = 97,826.30/x
  3. Step 3: Cross multiply
    127,375.10x = 191,257.05 × 97,826.30
  4. Step 4: Simplify right side
    127,375.10x = 18,709,969,550.42
  5. Step 5: Solve for x
    x = 18,709,969,550.42/127,375.10
  6. Step 6: Final answer
    x = 146,888.75

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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.