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Finding the Fourth Proportional to 134,793.72, 186,014.14 and 74,364.89

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Solution

The fourth proportional to 134,793.72, 186,014.14 and 74,364.89 is: 102,622.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,793.72 : 186,014.14 = 74,364.89 : x
  2. Step 2: Convert to fraction form
    134,793.72/186,014.14 = 74,364.89/x
  3. Step 3: Cross multiply
    134,793.72x = 186,014.14 × 74,364.89
  4. Step 4: Simplify right side
    134,793.72x = 13,832,919,943.56
  5. Step 5: Solve for x
    x = 13,832,919,943.56/134,793.72
  6. Step 6: Final answer
    x = 102,622.88

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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.