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Finding the Fourth Proportional to 356,154.68, 491,493.39 and 195,009.70

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Solution

The fourth proportional to 356,154.68, 491,493.39 and 195,009.70 is: 269,113.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,154.68 : 491,493.39 = 195,009.70 : x
  2. Step 2: Convert to fraction form
    356,154.68/491,493.39 = 195,009.70/x
  3. Step 3: Cross multiply
    356,154.68x = 491,493.39 × 195,009.70
  4. Step 4: Simplify right side
    356,154.68x = 95,845,976,078.42
  5. Step 5: Solve for x
    x = 95,845,976,078.42/356,154.68
  6. Step 6: Final answer
    x = 269,113.35

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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.