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Finding the Fourth Proportional to 92,088.75, 138,133.12 and 60,916.71

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Solution

The fourth proportional to 92,088.75, 138,133.12 and 60,916.71 is: 91,375.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,088.75 : 138,133.12 = 60,916.71 : x
  2. Step 2: Convert to fraction form
    92,088.75/138,133.12 = 60,916.71/x
  3. Step 3: Cross multiply
    92,088.75x = 138,133.12 × 60,916.71
  4. Step 4: Simplify right side
    92,088.75x = 8,414,615,212.44
  5. Step 5: Solve for x
    x = 8,414,615,212.44/92,088.75
  6. Step 6: Final answer
    x = 91,375.06

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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.