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Finding the Fourth Proportional to 191,657.70, 287,168.75 and 116,550.66

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Solution

The fourth proportional to 191,657.70, 287,168.75 and 116,550.66 is: 174,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,657.70 : 287,168.75 = 116,550.66 : x
  2. Step 2: Convert to fraction form
    191,657.70/287,168.75 = 116,550.66/x
  3. Step 3: Cross multiply
    191,657.70x = 287,168.75 × 116,550.66
  4. Step 4: Simplify right side
    191,657.70x = 33,469,707,343.88
  5. Step 5: Solve for x
    x = 33,469,707,343.88/191,657.70
  6. Step 6: Final answer
    x = 174,632.73

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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.