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Finding the Fourth Proportional to 87,295.34, 120,473.88 and 49,572.02

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Solution

The fourth proportional to 87,295.34, 120,473.88 and 49,572.02 is: 68,412.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,295.34 : 120,473.88 = 49,572.02 : x
  2. Step 2: Convert to fraction form
    87,295.34/120,473.88 = 49,572.02/x
  3. Step 3: Cross multiply
    87,295.34x = 120,473.88 × 49,572.02
  4. Step 4: Simplify right side
    87,295.34x = 5,972,133,588.84
  5. Step 5: Solve for x
    x = 5,972,133,588.84/87,295.34
  6. Step 6: Final answer
    x = 68,412.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.