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Finding the Fourth Proportional to 57,868.70, 86,802.42 and 43,914.42

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Solution

The fourth proportional to 57,868.70, 86,802.42 and 43,914.42 is: 65,871.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,868.70 : 86,802.42 = 43,914.42 : x
  2. Step 2: Convert to fraction form
    57,868.70/86,802.42 = 43,914.42/x
  3. Step 3: Cross multiply
    57,868.70x = 86,802.42 × 43,914.42
  4. Step 4: Simplify right side
    57,868.70x = 3,811,877,928.90
  5. Step 5: Solve for x
    x = 3,811,877,928.90/57,868.70
  6. Step 6: Final answer
    x = 65,871.15

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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.