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Finding the Fourth Proportional to 89,162.64, 123,043.68 and 48,878.64

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Solution

The fourth proportional to 89,162.64, 123,043.68 and 48,878.64 is: 67,452.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,162.64 : 123,043.68 = 48,878.64 : x
  2. Step 2: Convert to fraction form
    89,162.64/123,043.68 = 48,878.64/x
  3. Step 3: Cross multiply
    89,162.64x = 123,043.68 × 48,878.64
  4. Step 4: Simplify right side
    89,162.64x = 6,014,207,739.00
  5. Step 5: Solve for x
    x = 6,014,207,739.00/89,162.64
  6. Step 6: Final answer
    x = 67,452.10

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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.