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Finding the Fourth Proportional to 192,470.40, 287,221.77 and 169,147.08

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Solution

The fourth proportional to 192,470.40, 287,221.77 and 169,147.08 is: 252,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,470.40 : 287,221.77 = 169,147.08 : x
  2. Step 2: Convert to fraction form
    192,470.40/287,221.77 = 169,147.08/x
  3. Step 3: Cross multiply
    192,470.40x = 287,221.77 × 169,147.08
  4. Step 4: Simplify right side
    192,470.40x = 48,582,723,707.93
  5. Step 5: Solve for x
    x = 48,582,723,707.93/192,470.40
  6. Step 6: Final answer
    x = 252,416.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.