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Finding the Fourth Proportional to 207,640.70, 310,804.95 and 163,025.90

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Solution

The fourth proportional to 207,640.70, 310,804.95 and 163,025.90 is: 244,023.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,640.70 : 310,804.95 = 163,025.90 : x
  2. Step 2: Convert to fraction form
    207,640.70/310,804.95 = 163,025.90/x
  3. Step 3: Cross multiply
    207,640.70x = 310,804.95 × 163,025.90
  4. Step 4: Simplify right side
    207,640.70x = 50,669,256,698.21
  5. Step 5: Solve for x
    x = 50,669,256,698.21/207,640.70
  6. Step 6: Final answer
    x = 244,023.72

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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.