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Finding the Fourth Proportional to 77,871.88, 116,807.84 and 44,568.72

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Solution

The fourth proportional to 77,871.88, 116,807.84 and 44,568.72 is: 66,853.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,871.88 : 116,807.84 = 44,568.72 : x
  2. Step 2: Convert to fraction form
    77,871.88/116,807.84 = 44,568.72/x
  3. Step 3: Cross multiply
    77,871.88x = 116,807.84 × 44,568.72
  4. Step 4: Simplify right side
    77,871.88x = 5,205,975,914.76
  5. Step 5: Solve for x
    x = 5,205,975,914.76/77,871.88
  6. Step 6: Final answer
    x = 66,853.09

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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.