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Finding the Fourth Proportional to 191,744.42, 287,680.41 and 85,113.59

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Solution

The fourth proportional to 191,744.42, 287,680.41 and 85,113.59 is: 127,698.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,744.42 : 287,680.41 = 85,113.59 : x
  2. Step 2: Convert to fraction form
    191,744.42/287,680.41 = 85,113.59/x
  3. Step 3: Cross multiply
    191,744.42x = 287,680.41 × 85,113.59
  4. Step 4: Simplify right side
    191,744.42x = 24,485,511,029.37
  5. Step 5: Solve for x
    x = 24,485,511,029.37/191,744.42
  6. Step 6: Final answer
    x = 127,698.69

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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.