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Finding the Fourth Proportional to 354,400.52, 531,600.76 and 91,744.52

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Solution

The fourth proportional to 354,400.52, 531,600.76 and 91,744.52 is: 137,616.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,400.52 : 531,600.76 = 91,744.52 : x
  2. Step 2: Convert to fraction form
    354,400.52/531,600.76 = 91,744.52/x
  3. Step 3: Cross multiply
    354,400.52x = 531,600.76 × 91,744.52
  4. Step 4: Simplify right side
    354,400.52x = 48,771,456,557.84
  5. Step 5: Solve for x
    x = 48,771,456,557.84/354,400.52
  6. Step 6: Final answer
    x = 137,616.77

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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.