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Finding the Fourth Proportional to 235,632.66, 353,488.68 and 109,221.66

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Solution

The fourth proportional to 235,632.66, 353,488.68 and 109,221.66 is: 163,850.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,632.66 : 353,488.68 = 109,221.66 : x
  2. Step 2: Convert to fraction form
    235,632.66/353,488.68 = 109,221.66/x
  3. Step 3: Cross multiply
    235,632.66x = 353,488.68 × 109,221.66
  4. Step 4: Simplify right side
    235,632.66x = 38,608,620,420.81
  5. Step 5: Solve for x
    x = 38,608,620,420.81/235,632.66
  6. Step 6: Final answer
    x = 163,850.89

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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.