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Finding the Fourth Proportional to 71,863.61, 107,851.91 and 49,832.01

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Solution

The fourth proportional to 71,863.61, 107,851.91 and 49,832.01 is: 74,787.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,863.61 : 107,851.91 = 49,832.01 : x
  2. Step 2: Convert to fraction form
    71,863.61/107,851.91 = 49,832.01/x
  3. Step 3: Cross multiply
    71,863.61x = 107,851.91 × 49,832.01
  4. Step 4: Simplify right side
    71,863.61x = 5,374,477,208.48
  5. Step 5: Solve for x
    x = 5,374,477,208.48/71,863.61
  6. Step 6: Final answer
    x = 74,787.19

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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.