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Finding the Fourth Proportional to 129,046.40, 193,504.80 and 58,846.40

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Solution

The fourth proportional to 129,046.40, 193,504.80 and 58,846.40 is: 88,240.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,046.40 : 193,504.80 = 58,846.40 : x
  2. Step 2: Convert to fraction form
    129,046.40/193,504.80 = 58,846.40/x
  3. Step 3: Cross multiply
    129,046.40x = 193,504.80 × 58,846.40
  4. Step 4: Simplify right side
    129,046.40x = 11,387,060,862.72
  5. Step 5: Solve for x
    x = 11,387,060,862.72/129,046.40
  6. Step 6: Final answer
    x = 88,240.05

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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.