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Finding the Fourth Proportional to 91,067.40, 136,599.40 and 34,892.28

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Solution

The fourth proportional to 91,067.40, 136,599.40 and 34,892.28 is: 52,337.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,067.40 : 136,599.40 = 34,892.28 : x
  2. Step 2: Convert to fraction form
    91,067.40/136,599.40 = 34,892.28/x
  3. Step 3: Cross multiply
    91,067.40x = 136,599.40 × 34,892.28
  4. Step 4: Simplify right side
    91,067.40x = 4,766,264,512.63
  5. Step 5: Solve for x
    x = 4,766,264,512.63/91,067.40
  6. Step 6: Final answer
    x = 52,337.77

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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.