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Finding the Fourth Proportional to 344,064.40, 516,096.60 and 218,093.20

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Solution

The fourth proportional to 344,064.40, 516,096.60 and 218,093.20 is: 327,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,064.40 : 516,096.60 = 218,093.20 : x
  2. Step 2: Convert to fraction form
    344,064.40/516,096.60 = 218,093.20/x
  3. Step 3: Cross multiply
    344,064.40x = 516,096.60 × 218,093.20
  4. Step 4: Simplify right side
    344,064.40x = 112,557,159,003.12
  5. Step 5: Solve for x
    x = 112,557,159,003.12/344,064.40
  6. Step 6: Final answer
    x = 327,139.80

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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.