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Finding the Fourth Proportional to 71,199.61, 98,247.95 and 39,363.37

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Solution

The fourth proportional to 71,199.61, 98,247.95 and 39,363.37 is: 54,317.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,199.61 : 98,247.95 = 39,363.37 : x
  2. Step 2: Convert to fraction form
    71,199.61/98,247.95 = 39,363.37/x
  3. Step 3: Cross multiply
    71,199.61x = 98,247.95 × 39,363.37
  4. Step 4: Simplify right side
    71,199.61x = 3,867,370,210.77
  5. Step 5: Solve for x
    x = 3,867,370,210.77/71,199.61
  6. Step 6: Final answer
    x = 54,317.29

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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.