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Finding the Fourth Proportional to 86,227.59, 118,992.86 and 48,501.75

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Solution

The fourth proportional to 86,227.59, 118,992.86 and 48,501.75 is: 66,931.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,227.59 : 118,992.86 = 48,501.75 : x
  2. Step 2: Convert to fraction form
    86,227.59/118,992.86 = 48,501.75/x
  3. Step 3: Cross multiply
    86,227.59x = 118,992.86 × 48,501.75
  4. Step 4: Simplify right side
    86,227.59x = 5,771,361,705.00
  5. Step 5: Solve for x
    x = 5,771,361,705.00/86,227.59
  6. Step 6: Final answer
    x = 66,931.73

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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.