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Finding the Fourth Proportional to 73,812.60, 110,718.90 and 48,880.80

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Solution

The fourth proportional to 73,812.60, 110,718.90 and 48,880.80 is: 73,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,812.60 : 110,718.90 = 48,880.80 : x
  2. Step 2: Convert to fraction form
    73,812.60/110,718.90 = 48,880.80/x
  3. Step 3: Cross multiply
    73,812.60x = 110,718.90 × 48,880.80
  4. Step 4: Simplify right side
    73,812.60x = 5,412,028,407.12
  5. Step 5: Solve for x
    x = 5,412,028,407.12/73,812.60
  6. Step 6: Final answer
    x = 73,321.20

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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.