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Finding the Fourth Proportional to 91,842, 137,744.88 and 25,265.04

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Solution

The fourth proportional to 91,842, 137,744.88 and 25,265.04 is: 37,892.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,842 : 137,744.88 = 25,265.04 : x
  2. Step 2: Convert to fraction form
    91,842/137,744.88 = 25,265.04/x
  3. Step 3: Cross multiply
    91,842x = 137,744.88 × 25,265.04
  4. Step 4: Simplify right side
    91,842x = 3,480,129,903.00
  5. Step 5: Solve for x
    x = 3,480,129,903.00/91,842
  6. Step 6: Final answer
    x = 37,892.58

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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.