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Finding the Fourth Proportional to 92,952.74, 128,274.54 and 50,511.44

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Solution

The fourth proportional to 92,952.74, 128,274.54 and 50,511.44 is: 69,705.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,952.74 : 128,274.54 = 50,511.44 : x
  2. Step 2: Convert to fraction form
    92,952.74/128,274.54 = 50,511.44/x
  3. Step 3: Cross multiply
    92,952.74x = 128,274.54 × 50,511.44
  4. Step 4: Simplify right side
    92,952.74x = 6,479,331,730.74
  5. Step 5: Solve for x
    x = 6,479,331,730.74/92,952.74
  6. Step 6: Final answer
    x = 69,705.66

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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.