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Finding the Fourth Proportional to 84,603.28, 126,905.08 and 34,674.08

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Solution

The fourth proportional to 84,603.28, 126,905.08 and 34,674.08 is: 52,011.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,603.28 : 126,905.08 = 34,674.08 : x
  2. Step 2: Convert to fraction form
    84,603.28/126,905.08 = 34,674.08/x
  3. Step 3: Cross multiply
    84,603.28x = 126,905.08 × 34,674.08
  4. Step 4: Simplify right side
    84,603.28x = 4,400,316,896.33
  5. Step 5: Solve for x
    x = 4,400,316,896.33/84,603.28
  6. Step 6: Final answer
    x = 52,011.19

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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.