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Finding the Fourth Proportional to 89,036.38, 122,870.22 and 48,752.62

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Solution

The fourth proportional to 89,036.38, 122,870.22 and 48,752.62 is: 67,278.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,036.38 : 122,870.22 = 48,752.62 : x
  2. Step 2: Convert to fraction form
    89,036.38/122,870.22 = 48,752.62/x
  3. Step 3: Cross multiply
    89,036.38x = 122,870.22 × 48,752.62
  4. Step 4: Simplify right side
    89,036.38x = 5,990,244,654.98
  5. Step 5: Solve for x
    x = 5,990,244,654.98/89,036.38
  6. Step 6: Final answer
    x = 67,278.62

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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.