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Finding the Fourth Proportional to 92,915.92, 128,224.08 and 50,474.44

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Solution

The fourth proportional to 92,915.92, 128,224.08 and 50,474.44 is: 69,654.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,915.92 : 128,224.08 = 50,474.44 : x
  2. Step 2: Convert to fraction form
    92,915.92/128,224.08 = 50,474.44/x
  3. Step 3: Cross multiply
    92,915.92x = 128,224.08 × 50,474.44
  4. Step 4: Simplify right side
    92,915.92x = 6,472,038,632.52
  5. Step 5: Solve for x
    x = 6,472,038,632.52/92,915.92
  6. Step 6: Final answer
    x = 69,654.79

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1.5x scale

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.