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Finding the Fourth Proportional to 89,841.36, 123,975.36 and 49,552.92

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Solution

The fourth proportional to 89,841.36, 123,975.36 and 49,552.92 is: 68,379.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,841.36 : 123,975.36 = 49,552.92 : x
  2. Step 2: Convert to fraction form
    89,841.36/123,975.36 = 49,552.92/x
  3. Step 3: Cross multiply
    89,841.36x = 123,975.36 × 49,552.92
  4. Step 4: Simplify right side
    89,841.36x = 6,143,341,096.05
  5. Step 5: Solve for x
    x = 6,143,341,096.05/89,841.36
  6. Step 6: Final answer
    x = 68,379.88

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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.