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Finding the Fourth Proportional to 181,941.49, 251,078.62 and 101,369.98

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Solution

The fourth proportional to 181,941.49, 251,078.62 and 101,369.98 is: 139,890.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,941.49 : 251,078.62 = 101,369.98 : x
  2. Step 2: Convert to fraction form
    181,941.49/251,078.62 = 101,369.98/x
  3. Step 3: Cross multiply
    181,941.49x = 251,078.62 × 101,369.98
  4. Step 4: Simplify right side
    181,941.49x = 25,451,832,925.58
  5. Step 5: Solve for x
    x = 25,451,832,925.58/181,941.49
  6. Step 6: Final answer
    x = 139,890.21

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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.