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Finding the Fourth Proportional to 80,871.60, 111,603.56 and 44,574.36

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Solution

The fourth proportional to 80,871.60, 111,603.56 and 44,574.36 is: 61,513.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,871.60 : 111,603.56 = 44,574.36 : x
  2. Step 2: Convert to fraction form
    80,871.60/111,603.56 = 44,574.36/x
  3. Step 3: Cross multiply
    80,871.60x = 111,603.56 × 44,574.36
  4. Step 4: Simplify right side
    80,871.60x = 4,974,657,260.72
  5. Step 5: Solve for x
    x = 4,974,657,260.72/80,871.60
  6. Step 6: Final answer
    x = 61,513.03

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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.