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Finding the Fourth Proportional to 92,936.76, 139,326.78 and 40,306.62

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Solution

The fourth proportional to 92,936.76, 139,326.78 and 40,306.62 is: 60,425.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,936.76 : 139,326.78 = 40,306.62 : x
  2. Step 2: Convert to fraction form
    92,936.76/139,326.78 = 40,306.62/x
  3. Step 3: Cross multiply
    92,936.76x = 139,326.78 × 40,306.62
  4. Step 4: Simplify right side
    92,936.76x = 5,615,791,577.28
  5. Step 5: Solve for x
    x = 5,615,791,577.28/92,936.76
  6. Step 6: Final answer
    x = 60,425.95

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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.