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Finding the Fourth Proportional to 162,551.50, 224,325.57 and 90,943.90

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Solution

The fourth proportional to 162,551.50, 224,325.57 and 90,943.90 is: 125,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,551.50 : 224,325.57 = 90,943.90 : x
  2. Step 2: Convert to fraction form
    162,551.50/224,325.57 = 90,943.90/x
  3. Step 3: Cross multiply
    162,551.50x = 224,325.57 × 90,943.90
  4. Step 4: Simplify right side
    162,551.50x = 20,401,042,205.52
  5. Step 5: Solve for x
    x = 20,401,042,205.52/162,551.50
  6. Step 6: Final answer
    x = 125,505.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.