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Finding the Fourth Proportional to 122,703.84, 169,326.93 and 68,991.93

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Solution

The fourth proportional to 122,703.84, 169,326.93 and 68,991.93 is: 95,206.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,703.84 : 169,326.93 = 68,991.93 : x
  2. Step 2: Convert to fraction form
    122,703.84/169,326.93 = 68,991.93/x
  3. Step 3: Cross multiply
    122,703.84x = 169,326.93 × 68,991.93
  4. Step 4: Simplify right side
    122,703.84x = 11,682,191,701.67
  5. Step 5: Solve for x
    x = 11,682,191,701.67/122,703.84
  6. Step 6: Final answer
    x = 95,206.41

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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.