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Finding the Fourth Proportional to 57,868.92, 86,661.81 and 52,259.26

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Solution

The fourth proportional to 57,868.92, 86,661.81 and 52,259.26 is: 78,261.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,868.92 : 86,661.81 = 52,259.26 : x
  2. Step 2: Convert to fraction form
    57,868.92/86,661.81 = 52,259.26/x
  3. Step 3: Cross multiply
    57,868.92x = 86,661.81 × 52,259.26
  4. Step 4: Simplify right side
    57,868.92x = 4,528,882,060.86
  5. Step 5: Solve for x
    x = 4,528,882,060.86/57,868.92
  6. Step 6: Final answer
    x = 78,261.05

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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.