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Finding the Fourth Proportional to 134,635, 185,793.85 and 73,381.72

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Solution

The fourth proportional to 134,635, 185,793.85 and 73,381.72 is: 101,265.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,635 : 185,793.85 = 73,381.72 : x
  2. Step 2: Convert to fraction form
    134,635/185,793.85 = 73,381.72/x
  3. Step 3: Cross multiply
    134,635x = 185,793.85 × 73,381.72
  4. Step 4: Simplify right side
    134,635x = 13,633,872,278.42
  5. Step 5: Solve for x
    x = 13,633,872,278.42/134,635
  6. Step 6: Final answer
    x = 101,265.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.