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Finding the Fourth Proportional to 188,924.48, 260,560.80 and 137,879.84

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Solution

The fourth proportional to 188,924.48, 260,560.80 and 137,879.84 is: 190,161.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,924.48 : 260,560.80 = 137,879.84 : x
  2. Step 2: Convert to fraction form
    188,924.48/260,560.80 = 137,879.84/x
  3. Step 3: Cross multiply
    188,924.48x = 260,560.80 × 137,879.84
  4. Step 4: Simplify right side
    188,924.48x = 35,926,081,414.27
  5. Step 5: Solve for x
    x = 35,926,081,414.27/188,924.48
  6. Step 6: Final answer
    x = 190,161.07

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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.