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Finding the Fourth Proportional to 71,503.72, 98,674.50 and 41,295.40

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Solution

The fourth proportional to 71,503.72, 98,674.50 and 41,295.40 is: 56,987.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,503.72 : 98,674.50 = 41,295.40 : x
  2. Step 2: Convert to fraction form
    71,503.72/98,674.50 = 41,295.40/x
  3. Step 3: Cross multiply
    71,503.72x = 98,674.50 × 41,295.40
  4. Step 4: Simplify right side
    71,503.72x = 4,074,802,947.30
  5. Step 5: Solve for x
    x = 4,074,802,947.30/71,503.72
  6. Step 6: Final answer
    x = 56,987.29

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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.