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Finding the Fourth Proportional to 63,102.06, 86,903.68 and 61,724.26

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Solution

The fourth proportional to 63,102.06, 86,903.68 and 61,724.26 is: 85,006.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,102.06 : 86,903.68 = 61,724.26 : x
  2. Step 2: Convert to fraction form
    63,102.06/86,903.68 = 61,724.26/x
  3. Step 3: Cross multiply
    63,102.06x = 86,903.68 × 61,724.26
  4. Step 4: Simplify right side
    63,102.06x = 5,364,065,339.28
  5. Step 5: Solve for x
    x = 5,364,065,339.28/63,102.06
  6. Step 6: Final answer
    x = 85,006.18

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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.