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Finding the Fourth Proportional to 242,447.92, 334,578.24 and 135,038.56

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Solution

The fourth proportional to 242,447.92, 334,578.24 and 135,038.56 is: 186,353.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,447.92 : 334,578.24 = 135,038.56 : x
  2. Step 2: Convert to fraction form
    242,447.92/334,578.24 = 135,038.56/x
  3. Step 3: Cross multiply
    242,447.92x = 334,578.24 × 135,038.56
  4. Step 4: Simplify right side
    242,447.92x = 45,180,963,736.93
  5. Step 5: Solve for x
    x = 45,180,963,736.93/242,447.92
  6. Step 6: Final answer
    x = 186,353.27

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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.