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Finding the Fourth Proportional to 118,599.73, 163,674.89 and 68,314.93

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Solution

The fourth proportional to 118,599.73, 163,674.89 and 68,314.93 is: 94,278.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,599.73 : 163,674.89 = 68,314.93 : x
  2. Step 2: Convert to fraction form
    118,599.73/163,674.89 = 68,314.93/x
  3. Step 3: Cross multiply
    118,599.73x = 163,674.89 × 68,314.93
  4. Step 4: Simplify right side
    118,599.73x = 11,181,438,653.11
  5. Step 5: Solve for x
    x = 11,181,438,653.11/118,599.73
  6. Step 6: Final answer
    x = 94,278.79

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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.