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Finding the Fourth Proportional to 89,893.46, 124,050.70 and 49,606.70

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Solution

The fourth proportional to 89,893.46, 124,050.70 and 49,606.70 is: 68,455.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,893.46 : 124,050.70 = 49,606.70 : x
  2. Step 2: Convert to fraction form
    89,893.46/124,050.70 = 49,606.70/x
  3. Step 3: Cross multiply
    89,893.46x = 124,050.70 × 49,606.70
  4. Step 4: Simplify right side
    89,893.46x = 6,153,745,859.69
  5. Step 5: Solve for x
    x = 6,153,745,859.69/89,893.46
  6. Step 6: Final answer
    x = 68,455.99

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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.