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Finding the Fourth Proportional to 545,105.56, 817,794.42 and 190,124.68

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Solution

The fourth proportional to 545,105.56, 817,794.42 and 190,124.68 is: 285,234.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,105.56 : 817,794.42 = 190,124.68 : x
  2. Step 2: Convert to fraction form
    545,105.56/817,794.42 = 190,124.68/x
  3. Step 3: Cross multiply
    545,105.56x = 817,794.42 × 190,124.68
  4. Step 4: Simplify right side
    545,105.56x = 155,482,902,408.29
  5. Step 5: Solve for x
    x = 155,482,902,408.29/545,105.56
  6. Step 6: Final answer
    x = 285,234.48

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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.