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Finding the Fourth Proportional to 129,966.40, 194,798.40 and 59,852.80

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Solution

The fourth proportional to 129,966.40, 194,798.40 and 59,852.80 is: 89,709.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,966.40 : 194,798.40 = 59,852.80 : x
  2. Step 2: Convert to fraction form
    129,966.40/194,798.40 = 59,852.80/x
  3. Step 3: Cross multiply
    129,966.40x = 194,798.40 × 59,852.80
  4. Step 4: Simplify right side
    129,966.40x = 11,659,229,675.52
  5. Step 5: Solve for x
    x = 11,659,229,675.52/129,966.40
  6. Step 6: Final answer
    x = 89,709.57

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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.