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Finding the Fourth Proportional to 548,656.50, 822,901.57 and 149,328.39

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Solution

The fourth proportional to 548,656.50, 822,901.57 and 149,328.39 is: 223,969.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,656.50 : 822,901.57 = 149,328.39 : x
  2. Step 2: Convert to fraction form
    548,656.50/822,901.57 = 149,328.39/x
  3. Step 3: Cross multiply
    548,656.50x = 822,901.57 × 149,328.39
  4. Step 4: Simplify right side
    548,656.50x = 122,882,566,576.57
  5. Step 5: Solve for x
    x = 122,882,566,576.57/548,656.50
  6. Step 6: Final answer
    x = 223,969.95

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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.