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Finding the Fourth Proportional to 234,390.54, 323,458.80 and 126,960.32

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Solution

The fourth proportional to 234,390.54, 323,458.80 and 126,960.32 is: 175,205.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,390.54 : 323,458.80 = 126,960.32 : x
  2. Step 2: Convert to fraction form
    234,390.54/323,458.80 = 126,960.32/x
  3. Step 3: Cross multiply
    234,390.54x = 323,458.80 × 126,960.32
  4. Step 4: Simplify right side
    234,390.54x = 41,066,431,137.52
  5. Step 5: Solve for x
    x = 41,066,431,137.52/234,390.54
  6. Step 6: Final answer
    x = 175,205.16

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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.