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Finding the Fourth Proportional to 61,422.41, 92,259.70 and 40,392.34

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Solution

The fourth proportional to 61,422.41, 92,259.70 and 40,392.34 is: 60,671.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,422.41 : 92,259.70 = 40,392.34 : x
  2. Step 2: Convert to fraction form
    61,422.41/92,259.70 = 40,392.34/x
  3. Step 3: Cross multiply
    61,422.41x = 92,259.70 × 40,392.34
  4. Step 4: Simplify right side
    61,422.41x = 3,726,584,839.07
  5. Step 5: Solve for x
    x = 3,726,584,839.07/61,422.41
  6. Step 6: Final answer
    x = 60,671.42

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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.