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Finding the Fourth Proportional to 167,463.60, 250,981.38 and 78,520.92

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Solution

The fourth proportional to 167,463.60, 250,981.38 and 78,520.92 is: 117,681.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,463.60 : 250,981.38 = 78,520.92 : x
  2. Step 2: Convert to fraction form
    167,463.60/250,981.38 = 78,520.92/x
  3. Step 3: Cross multiply
    167,463.60x = 250,981.38 × 78,520.92
  4. Step 4: Simplify right side
    167,463.60x = 19,707,288,860.47
  5. Step 5: Solve for x
    x = 19,707,288,860.47/167,463.60
  6. Step 6: Final answer
    x = 117,681.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.