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Finding the Fourth Proportional to 85,975.56, 118,657.86 and 48,251.88

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Solution

The fourth proportional to 85,975.56, 118,657.86 and 48,251.88 is: 66,594.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,975.56 : 118,657.86 = 48,251.88 : x
  2. Step 2: Convert to fraction form
    85,975.56/118,657.86 = 48,251.88/x
  3. Step 3: Cross multiply
    85,975.56x = 118,657.86 × 48,251.88
  4. Step 4: Simplify right side
    85,975.56x = 5,725,464,821.78
  5. Step 5: Solve for x
    x = 5,725,464,821.78/85,975.56
  6. Step 6: Final answer
    x = 66,594.10

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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.