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Finding the Fourth Proportional to 92,473.07, 138,698.74 and 25,918.56

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Solution

The fourth proportional to 92,473.07, 138,698.74 and 25,918.56 is: 38,874.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,473.07 : 138,698.74 = 25,918.56 : x
  2. Step 2: Convert to fraction form
    92,473.07/138,698.74 = 25,918.56/x
  3. Step 3: Cross multiply
    92,473.07x = 138,698.74 × 25,918.56
  4. Step 4: Simplify right side
    92,473.07x = 3,594,871,614.61
  5. Step 5: Solve for x
    x = 3,594,871,614.61/92,473.07
  6. Step 6: Final answer
    x = 38,874.79

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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.