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Finding the Fourth Proportional to 86,227.56, 118,987.60 and 48,494.52

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Solution

The fourth proportional to 86,227.56, 118,987.60 and 48,494.52 is: 66,918.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,227.56 : 118,987.60 = 48,494.52 : x
  2. Step 2: Convert to fraction form
    86,227.56/118,987.60 = 48,494.52/x
  3. Step 3: Cross multiply
    86,227.56x = 118,987.60 × 48,494.52
  4. Step 4: Simplify right side
    86,227.56x = 5,770,246,547.95
  5. Step 5: Solve for x
    x = 5,770,246,547.95/86,227.56
  6. Step 6: Final answer
    x = 66,918.82

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1.5x scale

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.