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Finding the Fourth Proportional to 92,874.87, 128,166.20 and 50,433.71

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Solution

The fourth proportional to 92,874.87, 128,166.20 and 50,433.71 is: 69,597.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,874.87 : 128,166.20 = 50,433.71 : x
  2. Step 2: Convert to fraction form
    92,874.87/128,166.20 = 50,433.71/x
  3. Step 3: Cross multiply
    92,874.87x = 128,166.20 × 50,433.71
  4. Step 4: Simplify right side
    92,874.87x = 6,463,896,390.02
  5. Step 5: Solve for x
    x = 6,463,896,390.02/92,874.87
  6. Step 6: Final answer
    x = 69,597.90

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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.