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Finding the Fourth Proportional to 63,866.62, 88,221.99 and 57,905.02

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Solution

The fourth proportional to 63,866.62, 88,221.99 and 57,905.02 is: 79,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,866.62 : 88,221.99 = 57,905.02 : x
  2. Step 2: Convert to fraction form
    63,866.62/88,221.99 = 57,905.02/x
  3. Step 3: Cross multiply
    63,866.62x = 88,221.99 × 57,905.02
  4. Step 4: Simplify right side
    63,866.62x = 5,108,496,095.39
  5. Step 5: Solve for x
    x = 5,108,496,095.39/63,866.62
  6. Step 6: Final answer
    x = 79,986.95

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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.