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Finding the Fourth Proportional to 133,092.80, 199,639.20 and 119,970.80

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Solution

The fourth proportional to 133,092.80, 199,639.20 and 119,970.80 is: 179,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,092.80 : 199,639.20 = 119,970.80 : x
  2. Step 2: Convert to fraction form
    133,092.80/199,639.20 = 119,970.80/x
  3. Step 3: Cross multiply
    133,092.80x = 199,639.20 × 119,970.80
  4. Step 4: Simplify right side
    133,092.80x = 23,950,874,535.36
  5. Step 5: Solve for x
    x = 23,950,874,535.36/133,092.80
  6. Step 6: Final answer
    x = 179,956.20

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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.