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Finding the Fourth Proportional to 238,590.05, 357,589.62 and 120,196.80

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Solution

The fourth proportional to 238,590.05, 357,589.62 and 120,196.80 is: 180,146.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,590.05 : 357,589.62 = 120,196.80 : x
  2. Step 2: Convert to fraction form
    238,590.05/357,589.62 = 120,196.80/x
  3. Step 3: Cross multiply
    238,590.05x = 357,589.62 × 120,196.80
  4. Step 4: Simplify right side
    238,590.05x = 42,981,128,037.22
  5. Step 5: Solve for x
    x = 42,981,128,037.22/238,590.05
  6. Step 6: Final answer
    x = 180,146.36

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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.