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Finding the Fourth Proportional to 89,898.92, 124,060.39 and 49,612.68

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Solution

The fourth proportional to 89,898.92, 124,060.39 and 49,612.68 is: 68,465.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,898.92 : 124,060.39 = 49,612.68 : x
  2. Step 2: Convert to fraction form
    89,898.92/124,060.39 = 49,612.68/x
  3. Step 3: Cross multiply
    89,898.92x = 124,060.39 × 49,612.68
  4. Step 4: Simplify right side
    89,898.92x = 6,154,968,305.71
  5. Step 5: Solve for x
    x = 6,154,968,305.71/89,898.92
  6. Step 6: Final answer
    x = 68,465.43

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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.