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Finding the Fourth Proportional to 71,893.53, 107,888.90 and 25,146.81

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Solution

The fourth proportional to 71,893.53, 107,888.90 and 25,146.81 is: 37,737.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,893.53 : 107,888.90 = 25,146.81 : x
  2. Step 2: Convert to fraction form
    71,893.53/107,888.90 = 25,146.81/x
  3. Step 3: Cross multiply
    71,893.53x = 107,888.90 × 25,146.81
  4. Step 4: Simplify right side
    71,893.53x = 2,713,061,543.67
  5. Step 5: Solve for x
    x = 2,713,061,543.67/71,893.53
  6. Step 6: Final answer
    x = 37,737.21

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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.