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Finding the Fourth Proportional to 89,717.94, 123,813.56 and 51,484.50

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Solution

The fourth proportional to 89,717.94, 123,813.56 and 51,484.50 is: 71,050.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,717.94 : 123,813.56 = 51,484.50 : x
  2. Step 2: Convert to fraction form
    89,717.94/123,813.56 = 51,484.50/x
  3. Step 3: Cross multiply
    89,717.94x = 123,813.56 × 51,484.50
  4. Step 4: Simplify right side
    89,717.94x = 6,374,479,358.53
  5. Step 5: Solve for x
    x = 6,374,479,358.53/89,717.94
  6. Step 6: Final answer
    x = 71,050.22

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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.