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Finding the Fourth Proportional to 230,849.70, 346,274.55 and 191,451.30

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Solution

The fourth proportional to 230,849.70, 346,274.55 and 191,451.30 is: 287,176.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,849.70 : 346,274.55 = 191,451.30 : x
  2. Step 2: Convert to fraction form
    230,849.70/346,274.55 = 191,451.30/x
  3. Step 3: Cross multiply
    230,849.70x = 346,274.55 × 191,451.30
  4. Step 4: Simplify right side
    230,849.70x = 66,294,712,754.42
  5. Step 5: Solve for x
    x = 66,294,712,754.42/230,849.70
  6. Step 6: Final answer
    x = 287,176.95

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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.