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Finding the Fourth Proportional to 235,276.40, 352,667.87 and 115,167.72

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Solution

The fourth proportional to 235,276.40, 352,667.87 and 115,167.72 is: 172,630.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,276.40 : 352,667.87 = 115,167.72 : x
  2. Step 2: Convert to fraction form
    235,276.40/352,667.87 = 115,167.72/x
  3. Step 3: Cross multiply
    235,276.40x = 352,667.87 × 115,167.72
  4. Step 4: Simplify right side
    235,276.40x = 40,615,956,331.52
  5. Step 5: Solve for x
    x = 40,615,956,331.52/235,276.40
  6. Step 6: Final answer
    x = 172,630.82

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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.