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Finding the Fourth Proportional to 140,096.94, 193,329.63 and 79,674.18

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Solution

The fourth proportional to 140,096.94, 193,329.63 and 79,674.18 is: 109,948.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,096.94 : 193,329.63 = 79,674.18 : x
  2. Step 2: Convert to fraction form
    140,096.94/193,329.63 = 79,674.18/x
  3. Step 3: Cross multiply
    140,096.94x = 193,329.63 × 79,674.18
  4. Step 4: Simplify right side
    140,096.94x = 15,403,379,739.95
  5. Step 5: Solve for x
    x = 15,403,379,739.95/140,096.94
  6. Step 6: Final answer
    x = 109,948.01

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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.