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Finding the Fourth Proportional to 72,935.10, 109,358.90 and 33,442.74

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Solution

The fourth proportional to 72,935.10, 109,358.90 and 33,442.74 is: 50,144.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,935.10 : 109,358.90 = 33,442.74 : x
  2. Step 2: Convert to fraction form
    72,935.10/109,358.90 = 33,442.74/x
  3. Step 3: Cross multiply
    72,935.10x = 109,358.90 × 33,442.74
  4. Step 4: Simplify right side
    72,935.10x = 3,657,261,092.17
  5. Step 5: Solve for x
    x = 3,657,261,092.17/72,935.10
  6. Step 6: Final answer
    x = 50,144.05

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