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Finding the Fourth Proportional to 366,938.70, 550,408.05 and 234,078.45

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Solution

The fourth proportional to 366,938.70, 550,408.05 and 234,078.45 is: 351,117.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,938.70 : 550,408.05 = 234,078.45 : x
  2. Step 2: Convert to fraction form
    366,938.70/550,408.05 = 234,078.45/x
  3. Step 3: Cross multiply
    366,938.70x = 550,408.05 × 234,078.45
  4. Step 4: Simplify right side
    366,938.70x = 128,838,663,211.52
  5. Step 5: Solve for x
    x = 128,838,663,211.52/366,938.70
  6. Step 6: Final answer
    x = 351,117.68

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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.