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Finding the Fourth Proportional to 86,892.66, 119,913.72 and 49,166.91

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Solution

The fourth proportional to 86,892.66, 119,913.72 and 49,166.91 is: 67,851.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,892.66 : 119,913.72 = 49,166.91 : x
  2. Step 2: Convert to fraction form
    86,892.66/119,913.72 = 49,166.91/x
  3. Step 3: Cross multiply
    86,892.66x = 119,913.72 × 49,166.91
  4. Step 4: Simplify right side
    86,892.66x = 5,895,787,079.01
  5. Step 5: Solve for x
    x = 5,895,787,079.01/86,892.66
  6. Step 6: Final answer
    x = 67,851.38

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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.