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Finding the Fourth Proportional to 86,046.72, 118,737.72 and 48,313.68

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Solution

The fourth proportional to 86,046.72, 118,737.72 and 48,313.68 is: 66,669.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,046.72 : 118,737.72 = 48,313.68 : x
  2. Step 2: Convert to fraction form
    86,046.72/118,737.72 = 48,313.68/x
  3. Step 3: Cross multiply
    86,046.72x = 118,737.72 × 48,313.68
  4. Step 4: Simplify right side
    86,046.72x = 5,736,656,208.01
  5. Step 5: Solve for x
    x = 5,736,656,208.01/86,046.72
  6. Step 6: Final answer
    x = 66,669.09

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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.