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Finding the Fourth Proportional to 355,167.66, 532,961.67 and 130,685.73

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Solution

The fourth proportional to 355,167.66, 532,961.67 and 130,685.73 is: 196,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,167.66 : 532,961.67 = 130,685.73 : x
  2. Step 2: Convert to fraction form
    355,167.66/532,961.67 = 130,685.73/x
  3. Step 3: Cross multiply
    355,167.66x = 532,961.67 × 130,685.73
  4. Step 4: Simplify right side
    355,167.66x = 69,650,484,905.97
  5. Step 5: Solve for x
    x = 69,650,484,905.97/355,167.66
  6. Step 6: Final answer
    x = 196,105.93

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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.