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Finding the Fourth Proportional to 90,497.87, 124,893.91 and 50,219.25

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Solution

The fourth proportional to 90,497.87, 124,893.91 and 50,219.25 is: 69,306.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,497.87 : 124,893.91 = 50,219.25 : x
  2. Step 2: Convert to fraction form
    90,497.87/124,893.91 = 50,219.25/x
  3. Step 3: Cross multiply
    90,497.87x = 124,893.91 × 50,219.25
  4. Step 4: Simplify right side
    90,497.87x = 6,272,078,489.77
  5. Step 5: Solve for x
    x = 6,272,078,489.77/90,497.87
  6. Step 6: Final answer
    x = 69,306.37

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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.