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Finding the Fourth Proportional to 259,887.42, 358,644.60 and 140,655.42

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Solution

The fourth proportional to 259,887.42, 358,644.60 and 140,655.42 is: 194,104.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,887.42 : 358,644.60 = 140,655.42 : x
  2. Step 2: Convert to fraction form
    259,887.42/358,644.60 = 140,655.42/x
  3. Step 3: Cross multiply
    259,887.42x = 358,644.60 × 140,655.42
  4. Step 4: Simplify right side
    259,887.42x = 50,445,306,843.73
  5. Step 5: Solve for x
    x = 50,445,306,843.73/259,887.42
  6. Step 6: Final answer
    x = 194,104.46

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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.