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Finding the Fourth Proportional to 140,089.98, 193,323.25 and 79,660.62

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Solution

The fourth proportional to 140,089.98, 193,323.25 and 79,660.62 is: 109,931.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,089.98 : 193,323.25 = 79,660.62 : x
  2. Step 2: Convert to fraction form
    140,089.98/193,323.25 = 79,660.62/x
  3. Step 3: Cross multiply
    140,089.98x = 193,323.25 × 79,660.62
  4. Step 4: Simplify right side
    140,089.98x = 15,400,250,239.57
  5. Step 5: Solve for x
    x = 15,400,250,239.57/140,089.98
  6. Step 6: Final answer
    x = 109,931.14

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1.5x scale

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.