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Finding the Fourth Proportional to 89,718.37, 123,810.20 and 48,884.20

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Solution

The fourth proportional to 89,718.37, 123,810.20 and 48,884.20 is: 67,459.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,718.37 : 123,810.20 = 48,884.20 : x
  2. Step 2: Convert to fraction form
    89,718.37/123,810.20 = 48,884.20/x
  3. Step 3: Cross multiply
    89,718.37x = 123,810.20 × 48,884.20
  4. Step 4: Simplify right side
    89,718.37x = 6,052,361,959.79
  5. Step 5: Solve for x
    x = 6,052,361,959.79/89,718.37
  6. Step 6: Final answer
    x = 67,459.56

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1.5x scale

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.