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Finding the Fourth Proportional to 93,201.52, 139,785 and 30,863.92

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Solution

The fourth proportional to 93,201.52, 139,785 and 30,863.92 is: 46,290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,201.52 : 139,785 = 30,863.92 : x
  2. Step 2: Convert to fraction form
    93,201.52/139,785 = 30,863.92/x
  3. Step 3: Cross multiply
    93,201.52x = 139,785 × 30,863.92
  4. Step 4: Simplify right side
    93,201.52x = 4,314,313,057.20
  5. Step 5: Solve for x
    x = 4,314,313,057.20/93,201.52
  6. Step 6: Final answer
    x = 46,290.16

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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.