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Finding the Fourth Proportional to 84,754.66, 116,982.93 and 57,908.02

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Solution

The fourth proportional to 84,754.66, 116,982.93 and 57,908.02 is: 79,927.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,754.66 : 116,982.93 = 57,908.02 : x
  2. Step 2: Convert to fraction form
    84,754.66/116,982.93 = 57,908.02/x
  3. Step 3: Cross multiply
    84,754.66x = 116,982.93 × 57,908.02
  4. Step 4: Simplify right side
    84,754.66x = 6,774,249,850.10
  5. Step 5: Solve for x
    x = 6,774,249,850.10/84,754.66
  6. Step 6: Final answer
    x = 79,927.76

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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.