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Finding the Fourth Proportional to 129,807.54, 194,643.45 and 58,669.02

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Solution

The fourth proportional to 129,807.54, 194,643.45 and 58,669.02 is: 87,972.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,807.54 : 194,643.45 = 58,669.02 : x
  2. Step 2: Convert to fraction form
    129,807.54/194,643.45 = 58,669.02/x
  3. Step 3: Cross multiply
    129,807.54x = 194,643.45 × 58,669.02
  4. Step 4: Simplify right side
    129,807.54x = 11,419,540,460.92
  5. Step 5: Solve for x
    x = 11,419,540,460.92/129,807.54
  6. Step 6: Final answer
    x = 87,972.86

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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.