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Finding the Fourth Proportional to 100,552.56, 138,754.44 and 58,113.84

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Solution

The fourth proportional to 100,552.56, 138,754.44 and 58,113.84 is: 80,192.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,552.56 : 138,754.44 = 58,113.84 : x
  2. Step 2: Convert to fraction form
    100,552.56/138,754.44 = 58,113.84/x
  3. Step 3: Cross multiply
    100,552.56x = 138,754.44 × 58,113.84
  4. Step 4: Simplify right side
    100,552.56x = 8,063,553,325.45
  5. Step 5: Solve for x
    x = 8,063,553,325.45/100,552.56
  6. Step 6: Final answer
    x = 80,192.42

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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.