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Finding the Fourth Proportional to 122,653.58, 169,263.54 and 68,935.46

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Solution

The fourth proportional to 122,653.58, 169,263.54 and 68,935.46 is: 95,131.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,653.58 : 169,263.54 = 68,935.46 : x
  2. Step 2: Convert to fraction form
    122,653.58/169,263.54 = 68,935.46/x
  3. Step 3: Cross multiply
    122,653.58x = 169,263.54 × 68,935.46
  4. Step 4: Simplify right side
    122,653.58x = 11,668,259,144.81
  5. Step 5: Solve for x
    x = 11,668,259,144.81/122,653.58
  6. Step 6: Final answer
    x = 95,131.83

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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.