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Finding the Fourth Proportional to 300,586.91, 415,090.91 and 193,343.11

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Solution

The fourth proportional to 300,586.91, 415,090.91 and 193,343.11 is: 266,994.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,586.91 : 415,090.91 = 193,343.11 : x
  2. Step 2: Convert to fraction form
    300,586.91/415,090.91 = 193,343.11/x
  3. Step 3: Cross multiply
    300,586.91x = 415,090.91 × 193,343.11
  4. Step 4: Simplify right side
    300,586.91x = 80,254,966,917.76
  5. Step 5: Solve for x
    x = 80,254,966,917.76/300,586.91
  6. Step 6: Final answer
    x = 266,994.22

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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.