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Finding the Fourth Proportional to 303,822.78, 455,694.21 and 93,443.10

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Solution

The fourth proportional to 303,822.78, 455,694.21 and 93,443.10 is: 140,152.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,822.78 : 455,694.21 = 93,443.10 : x
  2. Step 2: Convert to fraction form
    303,822.78/455,694.21 = 93,443.10/x
  3. Step 3: Cross multiply
    303,822.78x = 455,694.21 × 93,443.10
  4. Step 4: Simplify right side
    303,822.78x = 42,581,479,634.45
  5. Step 5: Solve for x
    x = 42,581,479,634.45/303,822.78
  6. Step 6: Final answer
    x = 140,152.36

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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.