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Finding the Fourth Proportional to 115,911.10, 173,737.05 and 49,339.90

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Solution

The fourth proportional to 115,911.10, 173,737.05 and 49,339.90 is: 73,954.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,911.10 : 173,737.05 = 49,339.90 : x
  2. Step 2: Convert to fraction form
    115,911.10/173,737.05 = 49,339.90/x
  3. Step 3: Cross multiply
    115,911.10x = 173,737.05 × 49,339.90
  4. Step 4: Simplify right side
    115,911.10x = 8,572,168,673.30
  5. Step 5: Solve for x
    x = 8,572,168,673.30/115,911.10
  6. Step 6: Final answer
    x = 73,954.68

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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.