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Finding the Fourth Proportional to 122,341.42, 168,822.42 and 67,896.51

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Solution

The fourth proportional to 122,341.42, 168,822.42 and 67,896.51 is: 93,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,341.42 : 168,822.42 = 67,896.51 : x
  2. Step 2: Convert to fraction form
    122,341.42/168,822.42 = 67,896.51/x
  3. Step 3: Cross multiply
    122,341.42x = 168,822.42 × 67,896.51
  4. Step 4: Simplify right side
    122,341.42x = 11,462,453,127.75
  5. Step 5: Solve for x
    x = 11,462,453,127.75/122,341.42
  6. Step 6: Final answer
    x = 93,692.33

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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.