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Finding the Fourth Proportional to 92,233.70, 138,350.55 and 76,681.70

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Solution

The fourth proportional to 92,233.70, 138,350.55 and 76,681.70 is: 115,022.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,233.70 : 138,350.55 = 76,681.70 : x
  2. Step 2: Convert to fraction form
    92,233.70/138,350.55 = 76,681.70/x
  3. Step 3: Cross multiply
    92,233.70x = 138,350.55 × 76,681.70
  4. Step 4: Simplify right side
    92,233.70x = 10,608,955,369.94
  5. Step 5: Solve for x
    x = 10,608,955,369.94/92,233.70
  6. Step 6: Final answer
    x = 115,022.55

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1.5x scale

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.