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Finding the Fourth Proportional to 132,878.92, 199,371.48 and 53,999.32

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Solution

The fourth proportional to 132,878.92, 199,371.48 and 53,999.32 is: 81,020.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,878.92 : 199,371.48 = 53,999.32 : x
  2. Step 2: Convert to fraction form
    132,878.92/199,371.48 = 53,999.32/x
  3. Step 3: Cross multiply
    132,878.92x = 199,371.48 × 53,999.32
  4. Step 4: Simplify right side
    132,878.92x = 10,765,924,347.39
  5. Step 5: Solve for x
    x = 10,765,924,347.39/132,878.92
  6. Step 6: Final answer
    x = 81,020.56

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1.5x scale

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.