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Finding the Fourth Proportional to 90,497.88, 124,893.92 and 50,219.26

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Solution

The fourth proportional to 90,497.88, 124,893.92 and 50,219.26 is: 69,306.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,497.88 : 124,893.92 = 50,219.26 : x
  2. Step 2: Convert to fraction form
    90,497.88/124,893.92 = 50,219.26/x
  3. Step 3: Cross multiply
    90,497.88x = 124,893.92 × 50,219.26
  4. Step 4: Simplify right side
    90,497.88x = 6,272,080,240.90
  5. Step 5: Solve for x
    x = 6,272,080,240.90/90,497.88
  6. Step 6: Final answer
    x = 69,306.38

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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.