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Finding the Fourth Proportional to 90,503.92, 124,893.50 and 50,216.82

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Solution

The fourth proportional to 90,503.92, 124,893.50 and 50,216.82 is: 69,298.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,503.92 : 124,893.50 = 50,216.82 : x
  2. Step 2: Convert to fraction form
    90,503.92/124,893.50 = 50,216.82/x
  3. Step 3: Cross multiply
    90,503.92x = 124,893.50 × 50,216.82
  4. Step 4: Simplify right side
    90,503.92x = 6,271,753,689.24
  5. Step 5: Solve for x
    x = 6,271,753,689.24/90,503.92
  6. Step 6: Final answer
    x = 69,298.14

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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.