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Finding the Fourth Proportional to 92,393.87, 138,574.06 and 25,817.50

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Solution

The fourth proportional to 92,393.87, 138,574.06 and 25,817.50 is: 38,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,393.87 : 138,574.06 = 25,817.50 : x
  2. Step 2: Convert to fraction form
    92,393.87/138,574.06 = 25,817.50/x
  3. Step 3: Cross multiply
    92,393.87x = 138,574.06 × 25,817.50
  4. Step 4: Simplify right side
    92,393.87x = 3,577,635,902.72
  5. Step 5: Solve for x
    x = 3,577,635,902.72/92,393.87
  6. Step 6: Final answer
    x = 38,721.57

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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.