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Finding the Fourth Proportional to 115,378.70, 173,068.05 and 48,801.56

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Solution

The fourth proportional to 115,378.70, 173,068.05 and 48,801.56 is: 73,202.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,378.70 : 173,068.05 = 48,801.56 : x
  2. Step 2: Convert to fraction form
    115,378.70/173,068.05 = 48,801.56/x
  3. Step 3: Cross multiply
    115,378.70x = 173,068.05 × 48,801.56
  4. Step 4: Simplify right side
    115,378.70x = 8,445,990,826.16
  5. Step 5: Solve for x
    x = 8,445,990,826.16/115,378.70
  6. Step 6: Final answer
    x = 73,202.34

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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.