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Finding the Fourth Proportional to 74,216.80, 111,325.20 and 52,055.20

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Solution

The fourth proportional to 74,216.80, 111,325.20 and 52,055.20 is: 78,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,216.80 : 111,325.20 = 52,055.20 : x
  2. Step 2: Convert to fraction form
    74,216.80/111,325.20 = 52,055.20/x
  3. Step 3: Cross multiply
    74,216.80x = 111,325.20 × 52,055.20
  4. Step 4: Simplify right side
    74,216.80x = 5,795,055,551.04
  5. Step 5: Solve for x
    x = 5,795,055,551.04/74,216.80
  6. Step 6: Final answer
    x = 78,082.80

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1.5x scale

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.