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Finding the Fourth Proportional to 69,081.95, 95,324.51 and 43,578.65

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Solution

The fourth proportional to 69,081.95, 95,324.51 and 43,578.65 is: 60,133.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,081.95 : 95,324.51 = 43,578.65 : x
  2. Step 2: Convert to fraction form
    69,081.95/95,324.51 = 43,578.65/x
  3. Step 3: Cross multiply
    69,081.95x = 95,324.51 × 43,578.65
  4. Step 4: Simplify right side
    69,081.95x = 4,154,113,457.71
  5. Step 5: Solve for x
    x = 4,154,113,457.71/69,081.95
  6. Step 6: Final answer
    x = 60,133.12

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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.