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Finding the Fourth Proportional to 56,708.91, 84,932.15 and 54,740.61

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Solution

The fourth proportional to 56,708.91, 84,932.15 and 54,740.61 is: 81,984.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,708.91 : 84,932.15 = 54,740.61 : x
  2. Step 2: Convert to fraction form
    56,708.91/84,932.15 = 54,740.61/x
  3. Step 3: Cross multiply
    56,708.91x = 84,932.15 × 54,740.61
  4. Step 4: Simplify right side
    56,708.91x = 4,649,237,425.91
  5. Step 5: Solve for x
    x = 4,649,237,425.91/56,708.91
  6. Step 6: Final answer
    x = 81,984.25

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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.