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Finding the Fourth Proportional to 235,456.11, 352,710.72 and 108,918.72

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Solution

The fourth proportional to 235,456.11, 352,710.72 and 108,918.72 is: 163,159.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,456.11 : 352,710.72 = 108,918.72 : x
  2. Step 2: Convert to fraction form
    235,456.11/352,710.72 = 108,918.72/x
  3. Step 3: Cross multiply
    235,456.11x = 352,710.72 × 108,918.72
  4. Step 4: Simplify right side
    235,456.11x = 38,416,800,152.68
  5. Step 5: Solve for x
    x = 38,416,800,152.68/235,456.11
  6. Step 6: Final answer
    x = 163,159.07

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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.