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Finding the Fourth Proportional to 75,737.40, 113,606.10 and 36,274.20

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Solution

The fourth proportional to 75,737.40, 113,606.10 and 36,274.20 is: 54,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,737.40 : 113,606.10 = 36,274.20 : x
  2. Step 2: Convert to fraction form
    75,737.40/113,606.10 = 36,274.20/x
  3. Step 3: Cross multiply
    75,737.40x = 113,606.10 × 36,274.20
  4. Step 4: Simplify right side
    75,737.40x = 4,120,970,392.62
  5. Step 5: Solve for x
    x = 4,120,970,392.62/75,737.40
  6. Step 6: Final answer
    x = 54,411.30

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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.