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Finding the Fourth Proportional to 84,772.66, 117,007.80 and 57,926.02

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Solution

The fourth proportional to 84,772.66, 117,007.80 and 57,926.02 is: 79,952.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,772.66 : 117,007.80 = 57,926.02 : x
  2. Step 2: Convert to fraction form
    84,772.66/117,007.80 = 57,926.02/x
  3. Step 3: Cross multiply
    84,772.66x = 117,007.80 × 57,926.02
  4. Step 4: Simplify right side
    84,772.66x = 6,777,796,162.96
  5. Step 5: Solve for x
    x = 6,777,796,162.96/84,772.66
  6. Step 6: Final answer
    x = 79,952.62

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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.