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Finding the Fourth Proportional to 344,065.60, 516,098.44 and 107,428.54

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Solution

The fourth proportional to 344,065.60, 516,098.44 and 107,428.54 is: 161,142.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,065.60 : 516,098.44 = 107,428.54 : x
  2. Step 2: Convert to fraction form
    344,065.60/516,098.44 = 107,428.54/x
  3. Step 3: Cross multiply
    344,065.60x = 516,098.44 × 107,428.54
  4. Step 4: Simplify right side
    344,065.60x = 55,443,701,905.48
  5. Step 5: Solve for x
    x = 55,443,701,905.48/344,065.60
  6. Step 6: Final answer
    x = 161,142.82

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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.