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Finding the Fourth Proportional to 259,893.76, 358,654.48 and 140,661.76

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Solution

The fourth proportional to 259,893.76, 358,654.48 and 140,661.76 is: 194,113.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,893.76 : 358,654.48 = 140,661.76 : x
  2. Step 2: Convert to fraction form
    259,893.76/358,654.48 = 140,661.76/x
  3. Step 3: Cross multiply
    259,893.76x = 358,654.48 × 140,661.76
  4. Step 4: Simplify right side
    259,893.76x = 50,448,970,388.68
  5. Step 5: Solve for x
    x = 50,448,970,388.68/259,893.76
  6. Step 6: Final answer
    x = 194,113.82

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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.