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Finding the Fourth Proportional to 276,657.01, 415,090.10 and 108,297.66

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Solution

The fourth proportional to 276,657.01, 415,090.10 and 108,297.66 is: 162,487.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,657.01 : 415,090.10 = 108,297.66 : x
  2. Step 2: Convert to fraction form
    276,657.01/415,090.10 = 108,297.66/x
  3. Step 3: Cross multiply
    276,657.01x = 415,090.10 × 108,297.66
  4. Step 4: Simplify right side
    276,657.01x = 44,953,286,519.17
  5. Step 5: Solve for x
    x = 44,953,286,519.17/276,657.01
  6. Step 6: Final answer
    x = 162,487.43

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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.