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Finding the Fourth Proportional to 101,340.60, 139,885.02 and 69,614.52

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Solution

The fourth proportional to 101,340.60, 139,885.02 and 69,614.52 is: 96,092.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,340.60 : 139,885.02 = 69,614.52 : x
  2. Step 2: Convert to fraction form
    101,340.60/139,885.02 = 69,614.52/x
  3. Step 3: Cross multiply
    101,340.60x = 139,885.02 × 69,614.52
  4. Step 4: Simplify right side
    101,340.60x = 9,738,028,522.49
  5. Step 5: Solve for x
    x = 9,738,028,522.49/101,340.60
  6. Step 6: Final answer
    x = 96,092.07

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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.