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Finding the Fourth Proportional to 129,852.79, 194,754.58 and 45,593.15

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Solution

The fourth proportional to 129,852.79, 194,754.58 and 45,593.15 is: 68,381.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,852.79 : 194,754.58 = 45,593.15 : x
  2. Step 2: Convert to fraction form
    129,852.79/194,754.58 = 45,593.15/x
  3. Step 3: Cross multiply
    129,852.79x = 194,754.58 × 45,593.15
  4. Step 4: Simplify right side
    129,852.79x = 8,879,473,691.37
  5. Step 5: Solve for x
    x = 8,879,473,691.37/129,852.79
  6. Step 6: Final answer
    x = 68,381.08

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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.