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Finding the Fourth Proportional to 242,618.79, 364,040.91 and 92,809.56

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Solution

The fourth proportional to 242,618.79, 364,040.91 and 92,809.56 is: 139,257.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,618.79 : 364,040.91 = 92,809.56 : x
  2. Step 2: Convert to fraction form
    242,618.79/364,040.91 = 92,809.56/x
  3. Step 3: Cross multiply
    242,618.79x = 364,040.91 × 92,809.56
  4. Step 4: Simplify right side
    242,618.79x = 33,786,476,679.10
  5. Step 5: Solve for x
    x = 33,786,476,679.10/242,618.79
  6. Step 6: Final answer
    x = 139,257.46

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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.