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Finding the Fourth Proportional to 73,109.39, 109,616.79 and 48,073.60

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Solution

The fourth proportional to 73,109.39, 109,616.79 and 48,073.60 is: 72,079.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,109.39 : 109,616.79 = 48,073.60 : x
  2. Step 2: Convert to fraction form
    73,109.39/109,616.79 = 48,073.60/x
  3. Step 3: Cross multiply
    73,109.39x = 109,616.79 × 48,073.60
  4. Step 4: Simplify right side
    73,109.39x = 5,269,674,033.04
  5. Step 5: Solve for x
    x = 5,269,674,033.04/73,109.39
  6. Step 6: Final answer
    x = 72,079.31

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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.