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Finding the Fourth Proportional to 91,774.95, 137,712.60 and 35,617.29

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Solution

The fourth proportional to 91,774.95, 137,712.60 and 35,617.29 is: 53,445.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,774.95 : 137,712.60 = 35,617.29 : x
  2. Step 2: Convert to fraction form
    91,774.95/137,712.60 = 35,617.29/x
  3. Step 3: Cross multiply
    91,774.95x = 137,712.60 × 35,617.29
  4. Step 4: Simplify right side
    91,774.95x = 4,904,949,610.85
  5. Step 5: Solve for x
    x = 4,904,949,610.85/91,774.95
  6. Step 6: Final answer
    x = 53,445.41

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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.