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Finding the Fourth Proportional to 122,360.42, 168,854.73 and 68,644.46

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Solution

The fourth proportional to 122,360.42, 168,854.73 and 68,644.46 is: 94,727.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,360.42 : 168,854.73 = 68,644.46 : x
  2. Step 2: Convert to fraction form
    122,360.42/168,854.73 = 68,644.46/x
  3. Step 3: Cross multiply
    122,360.42x = 168,854.73 × 68,644.46
  4. Step 4: Simplify right side
    122,360.42x = 11,590,941,924.02
  5. Step 5: Solve for x
    x = 11,590,941,924.02/122,360.42
  6. Step 6: Final answer
    x = 94,727.87

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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.