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Finding the Fourth Proportional to 61,401.89, 92,070.28 and 37,720.27

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Solution

The fourth proportional to 61,401.89, 92,070.28 and 37,720.27 is: 56,560.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,401.89 : 92,070.28 = 37,720.27 : x
  2. Step 2: Convert to fraction form
    61,401.89/92,070.28 = 37,720.27/x
  3. Step 3: Cross multiply
    61,401.89x = 92,070.28 × 37,720.27
  4. Step 4: Simplify right side
    61,401.89x = 3,472,915,820.58
  5. Step 5: Solve for x
    x = 3,472,915,820.58/61,401.89
  6. Step 6: Final answer
    x = 56,560.41

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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.