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Finding the Fourth Proportional to 391,576.02, 587,354.70 and 125,335.50

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Solution

The fourth proportional to 391,576.02, 587,354.70 and 125,335.50 is: 188,000.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,576.02 : 587,354.70 = 125,335.50 : x
  2. Step 2: Convert to fraction form
    391,576.02/587,354.70 = 125,335.50/x
  3. Step 3: Cross multiply
    391,576.02x = 587,354.70 × 125,335.50
  4. Step 4: Simplify right side
    391,576.02x = 73,616,395,001.85
  5. Step 5: Solve for x
    x = 73,616,395,001.85/391,576.02
  6. Step 6: Final answer
    x = 188,000.26

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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.