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Finding the Fourth Proportional to 129,679.35, 194,525.10 and 63,040.02

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Solution

The fourth proportional to 129,679.35, 194,525.10 and 63,040.02 is: 94,562.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,679.35 : 194,525.10 = 63,040.02 : x
  2. Step 2: Convert to fraction form
    129,679.35/194,525.10 = 63,040.02/x
  3. Step 3: Cross multiply
    129,679.35x = 194,525.10 × 63,040.02
  4. Step 4: Simplify right side
    129,679.35x = 12,262,866,194.50
  5. Step 5: Solve for x
    x = 12,262,866,194.50/129,679.35
  6. Step 6: Final answer
    x = 94,562.98

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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.