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Finding the Fourth Proportional to 79,354.50, 119,065.13 and 49,393.79

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Solution

The fourth proportional to 79,354.50, 119,065.13 and 49,393.79 is: 74,111.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,354.50 : 119,065.13 = 49,393.79 : x
  2. Step 2: Convert to fraction form
    79,354.50/119,065.13 = 49,393.79/x
  3. Step 3: Cross multiply
    79,354.50x = 119,065.13 × 49,393.79
  4. Step 4: Simplify right side
    79,354.50x = 5,881,077,816.97
  5. Step 5: Solve for x
    x = 5,881,077,816.97/79,354.50
  6. Step 6: Final answer
    x = 74,111.46

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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.