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Finding the Fourth Proportional to 86,103.54, 118,816.47 and 48,370.50

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Solution

The fourth proportional to 86,103.54, 118,816.47 and 48,370.50 is: 66,747.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,103.54 : 118,816.47 = 48,370.50 : x
  2. Step 2: Convert to fraction form
    86,103.54/118,816.47 = 48,370.50/x
  3. Step 3: Cross multiply
    86,103.54x = 118,816.47 × 48,370.50
  4. Step 4: Simplify right side
    86,103.54x = 5,747,212,062.14
  5. Step 5: Solve for x
    x = 5,747,212,062.14/86,103.54
  6. Step 6: Final answer
    x = 66,747.69

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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.