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Finding the Fourth Proportional to 92,551.61, 127,722.02 and 54,311.72

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Solution

The fourth proportional to 92,551.61, 127,722.02 and 54,311.72 is: 74,950.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,551.61 : 127,722.02 = 54,311.72 : x
  2. Step 2: Convert to fraction form
    92,551.61/127,722.02 = 54,311.72/x
  3. Step 3: Cross multiply
    92,551.61x = 127,722.02 × 54,311.72
  4. Step 4: Simplify right side
    92,551.61x = 6,936,801,677.91
  5. Step 5: Solve for x
    x = 6,936,801,677.91/92,551.61
  6. Step 6: Final answer
    x = 74,950.63

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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.