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Finding the Fourth Proportional to 303,388.52, 455,170.14 and 93,057.32

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Solution

The fourth proportional to 303,388.52, 455,170.14 and 93,057.32 is: 139,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,388.52 : 455,170.14 = 93,057.32 : x
  2. Step 2: Convert to fraction form
    303,388.52/455,170.14 = 93,057.32/x
  3. Step 3: Cross multiply
    303,388.52x = 455,170.14 × 93,057.32
  4. Step 4: Simplify right side
    303,388.52x = 42,356,913,372.42
  5. Step 5: Solve for x
    x = 42,356,913,372.42/303,388.52
  6. Step 6: Final answer
    x = 139,612.78

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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.