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Finding the Fourth Proportional to 132,649.49, 198,849.15 and 66,026.63

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Solution

The fourth proportional to 132,649.49, 198,849.15 and 66,026.63 is: 98,977.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,649.49 : 198,849.15 = 66,026.63 : x
  2. Step 2: Convert to fraction form
    132,649.49/198,849.15 = 66,026.63/x
  3. Step 3: Cross multiply
    132,649.49x = 198,849.15 × 66,026.63
  4. Step 4: Simplify right side
    132,649.49x = 13,129,338,258.62
  5. Step 5: Solve for x
    x = 13,129,338,258.62/132,649.49
  6. Step 6: Final answer
    x = 98,977.68

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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.