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Finding the Fourth Proportional to 86,207.25, 118,966.02 and 48,481.50

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Solution

The fourth proportional to 86,207.25, 118,966.02 and 48,481.50 is: 66,904.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,207.25 : 118,966.02 = 48,481.50 : x
  2. Step 2: Convert to fraction form
    86,207.25/118,966.02 = 48,481.50/x
  3. Step 3: Cross multiply
    86,207.25x = 118,966.02 × 48,481.50
  4. Step 4: Simplify right side
    86,207.25x = 5,767,651,098.63
  5. Step 5: Solve for x
    x = 5,767,651,098.63/86,207.25
  6. Step 6: Final answer
    x = 66,904.48

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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.