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Finding the Fourth Proportional to 191,638.72, 264,474.75 and 106,758.82

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Solution

The fourth proportional to 191,638.72, 264,474.75 and 106,758.82 is: 147,334.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,638.72 : 264,474.75 = 106,758.82 : x
  2. Step 2: Convert to fraction form
    191,638.72/264,474.75 = 106,758.82/x
  3. Step 3: Cross multiply
    191,638.72x = 264,474.75 × 106,758.82
  4. Step 4: Simplify right side
    191,638.72x = 28,235,012,229.80
  5. Step 5: Solve for x
    x = 28,235,012,229.80/191,638.72
  6. Step 6: Final answer
    x = 147,334.59

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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.