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Finding the Fourth Proportional to 234,785.44, 323,954.08 and 139,323.20

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Solution

The fourth proportional to 234,785.44, 323,954.08 and 139,323.20 is: 192,236.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,785.44 : 323,954.08 = 139,323.20 : x
  2. Step 2: Convert to fraction form
    234,785.44/323,954.08 = 139,323.20/x
  3. Step 3: Cross multiply
    234,785.44x = 323,954.08 × 139,323.20
  4. Step 4: Simplify right side
    234,785.44x = 45,134,319,078.66
  5. Step 5: Solve for x
    x = 45,134,319,078.66/234,785.44
  6. Step 6: Final answer
    x = 192,236.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.