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Finding the Fourth Proportional to 173,640.70, 260,461.05 and 107,155.90

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Solution

The fourth proportional to 173,640.70, 260,461.05 and 107,155.90 is: 160,733.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,640.70 : 260,461.05 = 107,155.90 : x
  2. Step 2: Convert to fraction form
    173,640.70/260,461.05 = 107,155.90/x
  3. Step 3: Cross multiply
    173,640.70x = 260,461.05 × 107,155.90
  4. Step 4: Simplify right side
    173,640.70x = 27,909,938,227.70
  5. Step 5: Solve for x
    x = 27,909,938,227.70/173,640.70
  6. Step 6: Final answer
    x = 160,733.85

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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.