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Finding the Fourth Proportional to 189,842.80, 284,764.20 and 169,625.20

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Solution

The fourth proportional to 189,842.80, 284,764.20 and 169,625.20 is: 254,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,842.80 : 284,764.20 = 169,625.20 : x
  2. Step 2: Convert to fraction form
    189,842.80/284,764.20 = 169,625.20/x
  3. Step 3: Cross multiply
    189,842.80x = 284,764.20 × 169,625.20
  4. Step 4: Simplify right side
    189,842.80x = 48,303,184,377.84
  5. Step 5: Solve for x
    x = 48,303,184,377.84/189,842.80
  6. Step 6: Final answer
    x = 254,437.80

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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.