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Finding the Fourth Proportional to 92,551.89, 138,827.85 and 22,431.21

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Solution

The fourth proportional to 92,551.89, 138,827.85 and 22,431.21 is: 33,646.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,551.89 : 138,827.85 = 22,431.21 : x
  2. Step 2: Convert to fraction form
    92,551.89/138,827.85 = 22,431.21/x
  3. Step 3: Cross multiply
    92,551.89x = 138,827.85 × 22,431.21
  4. Step 4: Simplify right side
    92,551.89x = 3,114,076,052.48
  5. Step 5: Solve for x
    x = 3,114,076,052.48/92,551.89
  6. Step 6: Final answer
    x = 33,646.81

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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.