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Finding the Fourth Proportional to 133,055.80, 199,314.90 and 82,982.20

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Solution

The fourth proportional to 133,055.80, 199,314.90 and 82,982.20 is: 124,305.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,055.80 : 199,314.90 = 82,982.20 : x
  2. Step 2: Convert to fraction form
    133,055.80/199,314.90 = 82,982.20/x
  3. Step 3: Cross multiply
    133,055.80x = 199,314.90 × 82,982.20
  4. Step 4: Simplify right side
    133,055.80x = 16,539,588,894.78
  5. Step 5: Solve for x
    x = 16,539,588,894.78/133,055.80
  6. Step 6: Final answer
    x = 124,305.66

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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.