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Finding the Fourth Proportional to 79,295.40, 109,370.52 and 50,974.02

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Solution

The fourth proportional to 79,295.40, 109,370.52 and 50,974.02 is: 70,307.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,295.40 : 109,370.52 = 50,974.02 : x
  2. Step 2: Convert to fraction form
    79,295.40/109,370.52 = 50,974.02/x
  3. Step 3: Cross multiply
    79,295.40x = 109,370.52 × 50,974.02
  4. Step 4: Simplify right side
    79,295.40x = 5,575,055,073.89
  5. Step 5: Solve for x
    x = 5,575,055,073.89/79,295.40
  6. Step 6: Final answer
    x = 70,307.42

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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.