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Finding the Fourth Proportional to 276,658.01, 415,091.60 and 108,298.66

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Solution

The fourth proportional to 276,658.01, 415,091.60 and 108,298.66 is: 162,488.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,658.01 : 415,091.60 = 108,298.66 : x
  2. Step 2: Convert to fraction form
    276,658.01/415,091.60 = 108,298.66/x
  3. Step 3: Cross multiply
    276,658.01x = 415,091.60 × 108,298.66
  4. Step 4: Simplify right side
    276,658.01x = 44,953,864,057.26
  5. Step 5: Solve for x
    x = 44,953,864,057.26/276,658.01
  6. Step 6: Final answer
    x = 162,488.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.