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Finding the Fourth Proportional to 548,999.70, 823,634.55 and 189,176.10

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Solution

The fourth proportional to 548,999.70, 823,634.55 and 189,176.10 is: 283,810.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,999.70 : 823,634.55 = 189,176.10 : x
  2. Step 2: Convert to fraction form
    548,999.70/823,634.55 = 189,176.10/x
  3. Step 3: Cross multiply
    548,999.70x = 823,634.55 × 189,176.10
  4. Step 4: Simplify right side
    548,999.70x = 155,811,971,994.26
  5. Step 5: Solve for x
    x = 155,811,971,994.26/548,999.70
  6. Step 6: Final answer
    x = 283,810.67

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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.