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Finding the Fourth Proportional to 173,390.70, 260,086.05 and 106,905.90

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Solution

The fourth proportional to 173,390.70, 260,086.05 and 106,905.90 is: 160,358.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,390.70 : 260,086.05 = 106,905.90 : x
  2. Step 2: Convert to fraction form
    173,390.70/260,086.05 = 106,905.90/x
  3. Step 3: Cross multiply
    173,390.70x = 260,086.05 × 106,905.90
  4. Step 4: Simplify right side
    173,390.70x = 27,804,733,252.70
  5. Step 5: Solve for x
    x = 27,804,733,252.70/173,390.70
  6. Step 6: Final answer
    x = 160,358.85

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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.