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Finding the Fourth Proportional to 188,192.40, 259,687.98 and 111,698.34

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Solution

The fourth proportional to 188,192.40, 259,687.98 and 111,698.34 is: 154,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,192.40 : 259,687.98 = 111,698.34 : x
  2. Step 2: Convert to fraction form
    188,192.40/259,687.98 = 111,698.34/x
  3. Step 3: Cross multiply
    188,192.40x = 259,687.98 × 111,698.34
  4. Step 4: Simplify right side
    188,192.40x = 29,006,716,283.95
  5. Step 5: Solve for x
    x = 29,006,716,283.95/188,192.40
  6. Step 6: Final answer
    x = 154,133.30

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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.