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Finding the Fourth Proportional to 64,324.62, 88,786.08 and 45,208.80

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Solution

The fourth proportional to 64,324.62, 88,786.08 and 45,208.80 is: 62,400.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,324.62 : 88,786.08 = 45,208.80 : x
  2. Step 2: Convert to fraction form
    64,324.62/88,786.08 = 45,208.80/x
  3. Step 3: Cross multiply
    64,324.62x = 88,786.08 × 45,208.80
  4. Step 4: Simplify right side
    64,324.62x = 4,013,912,133.50
  5. Step 5: Solve for x
    x = 4,013,912,133.50/64,324.62
  6. Step 6: Final answer
    x = 62,400.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.