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Finding the Fourth Proportional to 92,679.48, 139,028.94 and 30,354.84

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Solution

The fourth proportional to 92,679.48, 139,028.94 and 30,354.84 is: 45,535.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,679.48 : 139,028.94 = 30,354.84 : x
  2. Step 2: Convert to fraction form
    92,679.48/139,028.94 = 30,354.84/x
  3. Step 3: Cross multiply
    92,679.48x = 139,028.94 × 30,354.84
  4. Step 4: Simplify right side
    92,679.48x = 4,220,201,229.07
  5. Step 5: Solve for x
    x = 4,220,201,229.07/92,679.48
  6. Step 6: Final answer
    x = 45,535.44

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1.5x scale

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.