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Finding the Fourth Proportional to 129,954.72, 194,775.10 and 63,294.96

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Solution

The fourth proportional to 129,954.72, 194,775.10 and 63,294.96 is: 94,865.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,954.72 : 194,775.10 = 63,294.96 : x
  2. Step 2: Convert to fraction form
    129,954.72/194,775.10 = 63,294.96/x
  3. Step 3: Cross multiply
    129,954.72x = 194,775.10 × 63,294.96
  4. Step 4: Simplify right side
    129,954.72x = 12,328,282,163.50
  5. Step 5: Solve for x
    x = 12,328,282,163.50/129,954.72
  6. Step 6: Final answer
    x = 94,865.98

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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.