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Finding the Fourth Proportional to 259,890.92, 358,649.43 and 140,658.92

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Solution

The fourth proportional to 259,890.92, 358,649.43 and 140,658.92 is: 194,109.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,890.92 : 358,649.43 = 140,658.92 : x
  2. Step 2: Convert to fraction form
    259,890.92/358,649.43 = 140,658.92/x
  3. Step 3: Cross multiply
    259,890.92x = 358,649.43 × 140,658.92
  4. Step 4: Simplify right side
    259,890.92x = 50,447,241,482.42
  5. Step 5: Solve for x
    x = 50,447,241,482.42/259,890.92
  6. Step 6: Final answer
    x = 194,109.29

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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.