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Finding the Fourth Proportional to 89,165.88, 133,772.04 and 39,255.84

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Solution

The fourth proportional to 89,165.88, 133,772.04 and 39,255.84 is: 58,893.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,165.88 : 133,772.04 = 39,255.84 : x
  2. Step 2: Convert to fraction form
    89,165.88/133,772.04 = 39,255.84/x
  3. Step 3: Cross multiply
    89,165.88x = 133,772.04 × 39,255.84
  4. Step 4: Simplify right side
    89,165.88x = 5,251,333,798.71
  5. Step 5: Solve for x
    x = 5,251,333,798.71/89,165.88
  6. Step 6: Final answer
    x = 58,893.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.