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Finding the Fourth Proportional to 132,650.99, 198,851.40 and 66,028.13

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Solution

The fourth proportional to 132,650.99, 198,851.40 and 66,028.13 is: 98,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,650.99 : 198,851.40 = 66,028.13 : x
  2. Step 2: Convert to fraction form
    132,650.99/198,851.40 = 66,028.13/x
  3. Step 3: Cross multiply
    132,650.99x = 198,851.40 × 66,028.13
  4. Step 4: Simplify right side
    132,650.99x = 13,129,785,095.63
  5. Step 5: Solve for x
    x = 13,129,785,095.63/132,650.99
  6. Step 6: Final answer
    x = 98,979.93

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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.