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Finding the Fourth Proportional to 83,293.86, 124,940.68 and 27,133.87

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Solution

The fourth proportional to 83,293.86, 124,940.68 and 27,133.87 is: 40,700.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,293.86 : 124,940.68 = 27,133.87 : x
  2. Step 2: Convert to fraction form
    83,293.86/124,940.68 = 27,133.87/x
  3. Step 3: Cross multiply
    83,293.86x = 124,940.68 × 27,133.87
  4. Step 4: Simplify right side
    83,293.86x = 3,390,124,168.83
  5. Step 5: Solve for x
    x = 3,390,124,168.83/83,293.86
  6. Step 6: Final answer
    x = 40,700.77

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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.