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Finding the Fourth Proportional to 188,993.34, 260,765.46 and 107,303.49

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Solution

The fourth proportional to 188,993.34, 260,765.46 and 107,303.49 is: 148,053.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,993.34 : 260,765.46 = 107,303.49 : x
  2. Step 2: Convert to fraction form
    188,993.34/260,765.46 = 107,303.49/x
  3. Step 3: Cross multiply
    188,993.34x = 260,765.46 × 107,303.49
  4. Step 4: Simplify right side
    188,993.34x = 27,981,043,929.46
  5. Step 5: Solve for x
    x = 27,981,043,929.46/188,993.34
  6. Step 6: Final answer
    x = 148,053.07

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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.