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Finding the Fourth Proportional to 73,216.80, 109,825.20 and 60,969.60

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Solution

The fourth proportional to 73,216.80, 109,825.20 and 60,969.60 is: 91,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,216.80 : 109,825.20 = 60,969.60 : x
  2. Step 2: Convert to fraction form
    73,216.80/109,825.20 = 60,969.60/x
  3. Step 3: Cross multiply
    73,216.80x = 109,825.20 × 60,969.60
  4. Step 4: Simplify right side
    73,216.80x = 6,695,998,513.92
  5. Step 5: Solve for x
    x = 6,695,998,513.92/73,216.80
  6. Step 6: Final answer
    x = 91,454.40

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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.