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Finding the Fourth Proportional to 84,386.00, 126,469.15 and 34,407.59

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Solution

The fourth proportional to 84,386.00, 126,469.15 and 34,407.59 is: 51,566.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,386.00 : 126,469.15 = 34,407.59 : x
  2. Step 2: Convert to fraction form
    84,386.00/126,469.15 = 34,407.59/x
  3. Step 3: Cross multiply
    84,386.00x = 126,469.15 × 34,407.59
  4. Step 4: Simplify right side
    84,386.00x = 4,351,497,942.48
  5. Step 5: Solve for x
    x = 4,351,497,942.48/84,386.00
  6. Step 6: Final answer
    x = 51,566.58

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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.