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Finding the Fourth Proportional to 85,392.66, 117,848.61 and 49,593.90

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Solution

The fourth proportional to 85,392.66, 117,848.61 and 49,593.90 is: 68,443.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,392.66 : 117,848.61 = 49,593.90 : x
  2. Step 2: Convert to fraction form
    85,392.66/117,848.61 = 49,593.90/x
  3. Step 3: Cross multiply
    85,392.66x = 117,848.61 × 49,593.90
  4. Step 4: Simplify right side
    85,392.66x = 5,844,572,179.48
  5. Step 5: Solve for x
    x = 5,844,572,179.48/85,392.66
  6. Step 6: Final answer
    x = 68,443.50

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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.