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Finding the Fourth Proportional to 89,889.89, 124,050.52 and 49,606.71

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Solution

The fourth proportional to 89,889.89, 124,050.52 and 49,606.71 is: 68,458.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,889.89 : 124,050.52 = 49,606.71 : x
  2. Step 2: Convert to fraction form
    89,889.89/124,050.52 = 49,606.71/x
  3. Step 3: Cross multiply
    89,889.89x = 124,050.52 × 49,606.71
  4. Step 4: Simplify right side
    89,889.89x = 6,153,737,767.81
  5. Step 5: Solve for x
    x = 6,153,737,767.81/89,889.89
  6. Step 6: Final answer
    x = 68,458.62

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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.