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Finding the Fourth Proportional to 63,911.88, 88,357.83 and 47,968.65

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Solution

The fourth proportional to 63,911.88, 88,357.83 and 47,968.65 is: 66,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,911.88 : 88,357.83 = 47,968.65 : x
  2. Step 2: Convert to fraction form
    63,911.88/88,357.83 = 47,968.65/x
  3. Step 3: Cross multiply
    63,911.88x = 88,357.83 × 47,968.65
  4. Step 4: Simplify right side
    63,911.88x = 4,238,405,822.03
  5. Step 5: Solve for x
    x = 4,238,405,822.03/63,911.88
  6. Step 6: Final answer
    x = 66,316.40

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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.