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Finding the Fourth Proportional to 68,243.65, 94,176.44 and 39,568.93

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Solution

The fourth proportional to 68,243.65, 94,176.44 and 39,568.93 is: 54,605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,243.65 : 94,176.44 = 39,568.93 : x
  2. Step 2: Convert to fraction form
    68,243.65/94,176.44 = 39,568.93/x
  3. Step 3: Cross multiply
    68,243.65x = 94,176.44 × 39,568.93
  4. Step 4: Simplify right side
    68,243.65x = 3,726,460,962.01
  5. Step 5: Solve for x
    x = 3,726,460,962.01/68,243.65
  6. Step 6: Final answer
    x = 54,605.24

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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.