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Finding the Fourth Proportional to 347,553.28, 521,320.80 and 110,910.40

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Solution

The fourth proportional to 347,553.28, 521,320.80 and 110,910.40 is: 166,362.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,553.28 : 521,320.80 = 110,910.40 : x
  2. Step 2: Convert to fraction form
    347,553.28/521,320.80 = 110,910.40/x
  3. Step 3: Cross multiply
    347,553.28x = 521,320.80 × 110,910.40
  4. Step 4: Simplify right side
    347,553.28x = 57,819,898,456.32
  5. Step 5: Solve for x
    x = 57,819,898,456.32/347,553.28
  6. Step 6: Final answer
    x = 166,362.69

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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.