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Finding the Fourth Proportional to 129,686.60, 194,616.30 and 59,529.80

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Solution

The fourth proportional to 129,686.60, 194,616.30 and 59,529.80 is: 89,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,686.60 : 194,616.30 = 59,529.80 : x
  2. Step 2: Convert to fraction form
    129,686.60/194,616.30 = 59,529.80/x
  3. Step 3: Cross multiply
    129,686.60x = 194,616.30 × 59,529.80
  4. Step 4: Simplify right side
    129,686.60x = 11,585,469,415.74
  5. Step 5: Solve for x
    x = 11,585,469,415.74/129,686.60
  6. Step 6: Final answer
    x = 89,334.36

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1.5x scale

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.