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Finding the Fourth Proportional to 86,617.63, 119,532.33 and 48,894.31

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Solution

The fourth proportional to 86,617.63, 119,532.33 and 48,894.31 is: 67,474.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,617.63 : 119,532.33 = 48,894.31 : x
  2. Step 2: Convert to fraction form
    86,617.63/119,532.33 = 48,894.31/x
  3. Step 3: Cross multiply
    86,617.63x = 119,532.33 × 48,894.31
  4. Step 4: Simplify right side
    86,617.63x = 5,844,450,798.04
  5. Step 5: Solve for x
    x = 5,844,450,798.04/86,617.63
  6. Step 6: Final answer
    x = 67,474.15

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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.