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Finding the Fourth Proportional to 86,616.63, 119,530.95 and 48,893.31

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Solution

The fourth proportional to 86,616.63, 119,530.95 and 48,893.31 is: 67,472.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,616.63 : 119,530.95 = 48,893.31 : x
  2. Step 2: Convert to fraction form
    86,616.63/119,530.95 = 48,893.31/x
  3. Step 3: Cross multiply
    86,616.63x = 119,530.95 × 48,893.31
  4. Step 4: Simplify right side
    86,616.63x = 5,844,263,792.94
  5. Step 5: Solve for x
    x = 5,844,263,792.94/86,616.63
  6. Step 6: Final answer
    x = 67,472.77

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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.