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Finding the Fourth Proportional to 92,774.92, 128,028.85 and 50,332.54

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Solution

The fourth proportional to 92,774.92, 128,028.85 and 50,332.54 is: 69,458.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,774.92 : 128,028.85 = 50,332.54 : x
  2. Step 2: Convert to fraction form
    92,774.92/128,028.85 = 50,332.54/x
  3. Step 3: Cross multiply
    92,774.92x = 128,028.85 × 50,332.54
  4. Step 4: Simplify right side
    92,774.92x = 6,444,017,213.78
  5. Step 5: Solve for x
    x = 6,444,017,213.78/92,774.92
  6. Step 6: Final answer
    x = 69,458.61

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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.