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Finding the Fourth Proportional to 89,893.92, 124,054.92 and 49,609.56

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Solution

The fourth proportional to 89,893.92, 124,054.92 and 49,609.56 is: 68,461.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,893.92 : 124,054.92 = 49,609.56 : x
  2. Step 2: Convert to fraction form
    89,893.92/124,054.92 = 49,609.56/x
  3. Step 3: Cross multiply
    89,893.92x = 124,054.92 × 49,609.56
  4. Step 4: Simplify right side
    89,893.92x = 6,154,309,997.04
  5. Step 5: Solve for x
    x = 6,154,309,997.04/89,893.92
  6. Step 6: Final answer
    x = 68,461.92

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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.