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Finding the Fourth Proportional to 74,191.61, 102,389.44 and 41,915.03

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Solution

The fourth proportional to 74,191.61, 102,389.44 and 41,915.03 is: 57,845.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,191.61 : 102,389.44 = 41,915.03 : x
  2. Step 2: Convert to fraction form
    74,191.61/102,389.44 = 41,915.03/x
  3. Step 3: Cross multiply
    74,191.61x = 102,389.44 × 41,915.03
  4. Step 4: Simplify right side
    74,191.61x = 4,291,656,449.28
  5. Step 5: Solve for x
    x = 4,291,656,449.28/74,191.61
  6. Step 6: Final answer
    x = 57,845.58

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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.