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Finding the Fourth Proportional to 71,184.85, 98,230.88 and 39,351.85

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Solution

The fourth proportional to 71,184.85, 98,230.88 and 39,351.85 is: 54,303.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,184.85 : 98,230.88 = 39,351.85 : x
  2. Step 2: Convert to fraction form
    71,184.85/98,230.88 = 39,351.85/x
  3. Step 3: Cross multiply
    71,184.85x = 98,230.88 × 39,351.85
  4. Step 4: Simplify right side
    71,184.85x = 3,865,567,343.28
  5. Step 5: Solve for x
    x = 3,865,567,343.28/71,184.85
  6. Step 6: Final answer
    x = 54,303.23

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1.5x scale

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.