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Finding the Fourth Proportional to 61,773.72, 92,646.36 and 36,820.80

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Solution

The fourth proportional to 61,773.72, 92,646.36 and 36,820.80 is: 55,222.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,773.72 : 92,646.36 = 36,820.80 : x
  2. Step 2: Convert to fraction form
    61,773.72/92,646.36 = 36,820.80/x
  3. Step 3: Cross multiply
    61,773.72x = 92,646.36 × 36,820.80
  4. Step 4: Simplify right side
    61,773.72x = 3,411,313,092.29
  5. Step 5: Solve for x
    x = 3,411,313,092.29/61,773.72
  6. Step 6: Final answer
    x = 55,222.72

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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.