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Finding the Fourth Proportional to 92,687.06, 139,025.10 and 45,283.88

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Solution

The fourth proportional to 92,687.06, 139,025.10 and 45,283.88 is: 67,923.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,687.06 : 139,025.10 = 45,283.88 : x
  2. Step 2: Convert to fraction form
    92,687.06/139,025.10 = 45,283.88/x
  3. Step 3: Cross multiply
    92,687.06x = 139,025.10 × 45,283.88
  4. Step 4: Simplify right side
    92,687.06x = 6,295,595,945.39
  5. Step 5: Solve for x
    x = 6,295,595,945.39/92,687.06
  6. Step 6: Final answer
    x = 67,923.14

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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.