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Finding the Fourth Proportional to 139,193.66, 208,688.24 and 44,369.28

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Solution

The fourth proportional to 139,193.66, 208,688.24 and 44,369.28 is: 66,521.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,193.66 : 208,688.24 = 44,369.28 : x
  2. Step 2: Convert to fraction form
    139,193.66/208,688.24 = 44,369.28/x
  3. Step 3: Cross multiply
    139,193.66x = 208,688.24 × 44,369.28
  4. Step 4: Simplify right side
    139,193.66x = 9,259,346,953.27
  5. Step 5: Solve for x
    x = 9,259,346,953.27/139,193.66
  6. Step 6: Final answer
    x = 66,521.33

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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.