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Finding the Fourth Proportional to 137,725.88, 206,676.20 and 58,840.70

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Solution

The fourth proportional to 137,725.88, 206,676.20 and 58,840.70 is: 88,298.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,725.88 : 206,676.20 = 58,840.70 : x
  2. Step 2: Convert to fraction form
    137,725.88/206,676.20 = 58,840.70/x
  3. Step 3: Cross multiply
    137,725.88x = 206,676.20 × 58,840.70
  4. Step 4: Simplify right side
    137,725.88x = 12,160,971,395.06
  5. Step 5: Solve for x
    x = 12,160,971,395.06/137,725.88
  6. Step 6: Final answer
    x = 88,298.38

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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.