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Finding the Fourth Proportional to 68,842.53, 103,176.32 and 37,641.33

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Solution

The fourth proportional to 68,842.53, 103,176.32 and 37,641.33 is: 56,414.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,842.53 : 103,176.32 = 37,641.33 : x
  2. Step 2: Convert to fraction form
    68,842.53/103,176.32 = 37,641.33/x
  3. Step 3: Cross multiply
    68,842.53x = 103,176.32 × 37,641.33
  4. Step 4: Simplify right side
    68,842.53x = 3,883,693,721.10
  5. Step 5: Solve for x
    x = 3,883,693,721.10/68,842.53
  6. Step 6: Final answer
    x = 56,414.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.