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Finding the Fourth Proportional to 132,337, 182,625.06 and 72,721

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Solution

The fourth proportional to 132,337, 182,625.06 and 72,721 is: 100,354.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,337 : 182,625.06 = 72,721 : x
  2. Step 2: Convert to fraction form
    132,337/182,625.06 = 72,721/x
  3. Step 3: Cross multiply
    132,337x = 182,625.06 × 72,721
  4. Step 4: Simplify right side
    132,337x = 13,280,676,988.26
  5. Step 5: Solve for x
    x = 13,280,676,988.26/132,337
  6. Step 6: Final answer
    x = 100,354.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.