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Finding the Fourth Proportional to 89,892.11, 124,053.74 and 49,608.48

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Solution

The fourth proportional to 89,892.11, 124,053.74 and 49,608.48 is: 68,461.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,892.11 : 124,053.74 = 49,608.48 : x
  2. Step 2: Convert to fraction form
    89,892.11/124,053.74 = 49,608.48/x
  3. Step 3: Cross multiply
    89,892.11x = 124,053.74 × 49,608.48
  4. Step 4: Simplify right side
    89,892.11x = 6,154,117,231.67
  5. Step 5: Solve for x
    x = 6,154,117,231.67/89,892.11
  6. Step 6: Final answer
    x = 68,461.15

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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.