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Finding the Fourth Proportional to 66,675.68, 99,954.66 and 25,151.84

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Solution

The fourth proportional to 66,675.68, 99,954.66 and 25,151.84 is: 37,705.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,675.68 : 99,954.66 = 25,151.84 : x
  2. Step 2: Convert to fraction form
    66,675.68/99,954.66 = 25,151.84/x
  3. Step 3: Cross multiply
    66,675.68x = 99,954.66 × 25,151.84
  4. Step 4: Simplify right side
    66,675.68x = 2,514,043,615.57
  5. Step 5: Solve for x
    x = 2,514,043,615.57/66,675.68
  6. Step 6: Final answer
    x = 37,705.56

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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.