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Finding the Fourth Proportional to 63,468.90, 87,409.94 and 62,091.09

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Solution

The fourth proportional to 63,468.90, 87,409.94 and 62,091.09 is: 85,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,468.90 : 87,409.94 = 62,091.09 : x
  2. Step 2: Convert to fraction form
    63,468.90/87,409.94 = 62,091.09/x
  3. Step 3: Cross multiply
    63,468.90x = 87,409.94 × 62,091.09
  4. Step 4: Simplify right side
    63,468.90x = 5,427,378,140.98
  5. Step 5: Solve for x
    x = 5,427,378,140.98/63,468.90
  6. Step 6: Final answer
    x = 85,512.40

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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.