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Finding the Fourth Proportional to 92,744.20, 139,035.30 and 63,065.80

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Solution

The fourth proportional to 92,744.20, 139,035.30 and 63,065.80 is: 94,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,744.20 : 139,035.30 = 63,065.80 : x
  2. Step 2: Convert to fraction form
    92,744.20/139,035.30 = 63,065.80/x
  3. Step 3: Cross multiply
    92,744.20x = 139,035.30 × 63,065.80
  4. Step 4: Simplify right side
    92,744.20x = 8,768,372,422.74
  5. Step 5: Solve for x
    x = 8,768,372,422.74/92,744.20
  6. Step 6: Final answer
    x = 94,543.62

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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.