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Finding the Fourth Proportional to 74,603.96, 102,942.52 and 42,333.56

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Solution

The fourth proportional to 74,603.96, 102,942.52 and 42,333.56 is: 58,414.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,603.96 : 102,942.52 = 42,333.56 : x
  2. Step 2: Convert to fraction form
    74,603.96/102,942.52 = 42,333.56/x
  3. Step 3: Cross multiply
    74,603.96x = 102,942.52 × 42,333.56
  4. Step 4: Simplify right side
    74,603.96x = 4,357,923,346.97
  5. Step 5: Solve for x
    x = 4,357,923,346.97/74,603.96
  6. Step 6: Final answer
    x = 58,414.10

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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.