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Finding the Fourth Proportional to 92,912.44, 139,368.66 and 40,320.76

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Solution

The fourth proportional to 92,912.44, 139,368.66 and 40,320.76 is: 60,481.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,912.44 : 139,368.66 = 40,320.76 : x
  2. Step 2: Convert to fraction form
    92,912.44/139,368.66 = 40,320.76/x
  3. Step 3: Cross multiply
    92,912.44x = 139,368.66 × 40,320.76
  4. Step 4: Simplify right side
    92,912.44x = 5,619,450,291.38
  5. Step 5: Solve for x
    x = 5,619,450,291.38/92,912.44
  6. Step 6: Final answer
    x = 60,481.14

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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.