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Finding the Fourth Proportional to 132,959.40, 199,547.90 and 131,922.60

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Solution

The fourth proportional to 132,959.40, 199,547.90 and 131,922.60 is: 197,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,959.40 : 199,547.90 = 131,922.60 : x
  2. Step 2: Convert to fraction form
    132,959.40/199,547.90 = 131,922.60/x
  3. Step 3: Cross multiply
    132,959.40x = 199,547.90 × 131,922.60
  4. Step 4: Simplify right side
    132,959.40x = 26,324,877,792.54
  5. Step 5: Solve for x
    x = 26,324,877,792.54/132,959.40
  6. Step 6: Final answer
    x = 197,991.85

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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.