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Finding the Fourth Proportional to 171,752.82, 236,974.05 and 99,137.94

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Solution

The fourth proportional to 171,752.82, 236,974.05 and 99,137.94 is: 136,784.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,752.82 : 236,974.05 = 99,137.94 : x
  2. Step 2: Convert to fraction form
    171,752.82/236,974.05 = 99,137.94/x
  3. Step 3: Cross multiply
    171,752.82x = 236,974.05 × 99,137.94
  4. Step 4: Simplify right side
    171,752.82x = 23,493,119,150.46
  5. Step 5: Solve for x
    x = 23,493,119,150.46/171,752.82
  6. Step 6: Final answer
    x = 136,784.47

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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.