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Finding the Fourth Proportional to 73,269.70, 109,908.15 and 38,277.70

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Solution

The fourth proportional to 73,269.70, 109,908.15 and 38,277.70 is: 57,418.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,269.70 : 109,908.15 = 38,277.70 : x
  2. Step 2: Convert to fraction form
    73,269.70/109,908.15 = 38,277.70/x
  3. Step 3: Cross multiply
    73,269.70x = 109,908.15 × 38,277.70
  4. Step 4: Simplify right side
    73,269.70x = 4,207,031,193.26
  5. Step 5: Solve for x
    x = 4,207,031,193.26/73,269.70
  6. Step 6: Final answer
    x = 57,418.43

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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.