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Finding the Fourth Proportional to 129,193.92, 193,801.95 and 35,699.67

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Solution

The fourth proportional to 129,193.92, 193,801.95 and 35,699.67 is: 53,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,193.92 : 193,801.95 = 35,699.67 : x
  2. Step 2: Convert to fraction form
    129,193.92/193,801.95 = 35,699.67/x
  3. Step 3: Cross multiply
    129,193.92x = 193,801.95 × 35,699.67
  4. Step 4: Simplify right side
    129,193.92x = 6,918,665,660.36
  5. Step 5: Solve for x
    x = 6,918,665,660.36/129,193.92
  6. Step 6: Final answer
    x = 53,552.56

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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.