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Finding the Fourth Proportional to 235,588.40, 353,378.03 and 67,109.81

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Solution

The fourth proportional to 235,588.40, 353,378.03 and 67,109.81 is: 100,663.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,588.40 : 353,378.03 = 67,109.81 : x
  2. Step 2: Convert to fraction form
    235,588.40/353,378.03 = 67,109.81/x
  3. Step 3: Cross multiply
    235,588.40x = 353,378.03 × 67,109.81
  4. Step 4: Simplify right side
    235,588.40x = 23,715,132,451.47
  5. Step 5: Solve for x
    x = 23,715,132,451.47/235,588.40
  6. Step 6: Final answer
    x = 100,663.42

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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.