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Finding the Fourth Proportional to 366,940.85, 550,411.28 and 156,988.85

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Solution

The fourth proportional to 366,940.85, 550,411.28 and 156,988.85 is: 235,483.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,940.85 : 550,411.28 = 156,988.85 : x
  2. Step 2: Convert to fraction form
    366,940.85/550,411.28 = 156,988.85/x
  3. Step 3: Cross multiply
    366,940.85x = 550,411.28 × 156,988.85
  4. Step 4: Simplify right side
    366,940.85x = 86,408,433,874.23
  5. Step 5: Solve for x
    x = 86,408,433,874.23/366,940.85
  6. Step 6: Final answer
    x = 235,483.28

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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.