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Finding the Fourth Proportional to 79,833.84, 110,143.96 and 51,558.64

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Solution

The fourth proportional to 79,833.84, 110,143.96 and 51,558.64 is: 71,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,833.84 : 110,143.96 = 51,558.64 : x
  2. Step 2: Convert to fraction form
    79,833.84/110,143.96 = 51,558.64/x
  3. Step 3: Cross multiply
    79,833.84x = 110,143.96 × 51,558.64
  4. Step 4: Simplify right side
    79,833.84x = 5,678,872,781.81
  5. Step 5: Solve for x
    x = 5,678,872,781.81/79,833.84
  6. Step 6: Final answer
    x = 71,133.65

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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.