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Finding the Fourth Proportional to 127,965.80, 192,006.30 and 61,380.20

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Solution

The fourth proportional to 127,965.80, 192,006.30 and 61,380.20 is: 92,097.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,965.80 : 192,006.30 = 61,380.20 : x
  2. Step 2: Convert to fraction form
    127,965.80/192,006.30 = 61,380.20/x
  3. Step 3: Cross multiply
    127,965.80x = 192,006.30 × 61,380.20
  4. Step 4: Simplify right side
    127,965.80x = 11,785,385,095.26
  5. Step 5: Solve for x
    x = 11,785,385,095.26/127,965.80
  6. Step 6: Final answer
    x = 92,097.93

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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.