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Finding the Fourth Proportional to 92,916.92, 128,225.46 and 50,475.44

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Solution

The fourth proportional to 92,916.92, 128,225.46 and 50,475.44 is: 69,656.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,916.92 : 128,225.46 = 50,475.44 : x
  2. Step 2: Convert to fraction form
    92,916.92/128,225.46 = 50,475.44/x
  3. Step 3: Cross multiply
    92,916.92x = 128,225.46 × 50,475.44
  4. Step 4: Simplify right side
    92,916.92x = 6,472,236,512.70
  5. Step 5: Solve for x
    x = 6,472,236,512.70/92,916.92
  6. Step 6: Final answer
    x = 69,656.17

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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.