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Finding the Fourth Proportional to 84,891.84, 117,100.44 and 58,020.72

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Solution

The fourth proportional to 84,891.84, 117,100.44 and 58,020.72 is: 80,034.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,891.84 : 117,100.44 = 58,020.72 : x
  2. Step 2: Convert to fraction form
    84,891.84/117,100.44 = 58,020.72/x
  3. Step 3: Cross multiply
    84,891.84x = 117,100.44 × 58,020.72
  4. Step 4: Simplify right side
    84,891.84x = 6,794,251,841.12
  5. Step 5: Solve for x
    x = 6,794,251,841.12/84,891.84
  6. Step 6: Final answer
    x = 80,034.22

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1.5x scale

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.