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Finding the Fourth Proportional to 235,112.39, 352,621.40 and 115,117.61

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Solution

The fourth proportional to 235,112.39, 352,621.40 and 115,117.61 is: 172,653.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,112.39 : 352,621.40 = 115,117.61 : x
  2. Step 2: Convert to fraction form
    235,112.39/352,621.40 = 115,117.61/x
  3. Step 3: Cross multiply
    235,112.39x = 352,621.40 × 115,117.61
  4. Step 4: Simplify right side
    235,112.39x = 40,592,930,464.16
  5. Step 5: Solve for x
    x = 40,592,930,464.16/235,112.39
  6. Step 6: Final answer
    x = 172,653.31

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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.