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Finding the Fourth Proportional to 92,817.72, 128,084.76 and 50,375.52

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Solution

The fourth proportional to 92,817.72, 128,084.76 and 50,375.52 is: 69,516.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,817.72 : 128,084.76 = 50,375.52 : x
  2. Step 2: Convert to fraction form
    92,817.72/128,084.76 = 50,375.52/x
  3. Step 3: Cross multiply
    92,817.72x = 128,084.76 × 50,375.52
  4. Step 4: Simplify right side
    92,817.72x = 6,452,336,389.08
  5. Step 5: Solve for x
    x = 6,452,336,389.08/92,817.72
  6. Step 6: Final answer
    x = 69,516.21

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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.