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Finding the Fourth Proportional to 86,615.63, 119,529.57 and 48,892.31

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Solution

The fourth proportional to 86,615.63, 119,529.57 and 48,892.31 is: 67,471.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,615.63 : 119,529.57 = 48,892.31 : x
  2. Step 2: Convert to fraction form
    86,615.63/119,529.57 = 48,892.31/x
  3. Step 3: Cross multiply
    86,615.63x = 119,529.57 × 48,892.31
  4. Step 4: Simplify right side
    86,615.63x = 5,844,076,790.61
  5. Step 5: Solve for x
    x = 5,844,076,790.61/86,615.63
  6. Step 6: Final answer
    x = 67,471.39

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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.