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Finding the Fourth Proportional to 85,995.61, 118,671.68 and 47,753.98

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Solution

The fourth proportional to 85,995.61, 118,671.68 and 47,753.98 is: 65,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,995.61 : 118,671.68 = 47,753.98 : x
  2. Step 2: Convert to fraction form
    85,995.61/118,671.68 = 47,753.98/x
  3. Step 3: Cross multiply
    85,995.61x = 118,671.68 × 47,753.98
  4. Step 4: Simplify right side
    85,995.61x = 5,667,044,794.52
  5. Step 5: Solve for x
    x = 5,667,044,794.52/85,995.61
  6. Step 6: Final answer
    x = 65,899.23

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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.