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Finding the Fourth Proportional to 75,381.34, 113,080.90 and 33,243.52

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Solution

The fourth proportional to 75,381.34, 113,080.90 and 33,243.52 is: 49,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,381.34 : 113,080.90 = 33,243.52 : x
  2. Step 2: Convert to fraction form
    75,381.34/113,080.90 = 33,243.52/x
  3. Step 3: Cross multiply
    75,381.34x = 113,080.90 × 33,243.52
  4. Step 4: Simplify right side
    75,381.34x = 3,759,207,160.77
  5. Step 5: Solve for x
    x = 3,759,207,160.77/75,381.34
  6. Step 6: Final answer
    x = 49,869.20

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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.