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Finding the Fourth Proportional to 107,618.58, 148,511.61 and 59,871.78

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Solution

The fourth proportional to 107,618.58, 148,511.61 and 59,871.78 is: 82,621.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,618.58 : 148,511.61 = 59,871.78 : x
  2. Step 2: Convert to fraction form
    107,618.58/148,511.61 = 59,871.78/x
  3. Step 3: Cross multiply
    107,618.58x = 148,511.61 × 59,871.78
  4. Step 4: Simplify right side
    107,618.58x = 8,891,654,441.37
  5. Step 5: Solve for x
    x = 8,891,654,441.37/107,618.58
  6. Step 6: Final answer
    x = 82,621.93

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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.