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Finding the Fourth Proportional to 115,561.70, 173,256.15 and 48,947.30

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Solution

The fourth proportional to 115,561.70, 173,256.15 and 48,947.30 is: 73,384.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,561.70 : 173,256.15 = 48,947.30 : x
  2. Step 2: Convert to fraction form
    115,561.70/173,256.15 = 48,947.30/x
  3. Step 3: Cross multiply
    115,561.70x = 173,256.15 × 48,947.30
  4. Step 4: Simplify right side
    115,561.70x = 8,480,420,750.90
  5. Step 5: Solve for x
    x = 8,480,420,750.90/115,561.70
  6. Step 6: Final answer
    x = 73,384.35

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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.