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Finding the Fourth Proportional to 150,093.60, 207,181.20 and 86,456.76

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Solution

The fourth proportional to 150,093.60, 207,181.20 and 86,456.76 is: 119,340.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,093.60 : 207,181.20 = 86,456.76 : x
  2. Step 2: Convert to fraction form
    150,093.60/207,181.20 = 86,456.76/x
  3. Step 3: Cross multiply
    150,093.60x = 207,181.20 × 86,456.76
  4. Step 4: Simplify right side
    150,093.60x = 17,912,215,284.91
  5. Step 5: Solve for x
    x = 17,912,215,284.91/150,093.60
  6. Step 6: Final answer
    x = 119,340.30

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1.5x scale

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.