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Finding the Fourth Proportional to 115,373, 173,077.79 and 48,813.63

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Solution

The fourth proportional to 115,373, 173,077.79 and 48,813.63 is: 73,228.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,373 : 173,077.79 = 48,813.63 : x
  2. Step 2: Convert to fraction form
    115,373/173,077.79 = 48,813.63/x
  3. Step 3: Cross multiply
    115,373x = 173,077.79 × 48,813.63
  4. Step 4: Simplify right side
    115,373x = 8,448,555,202.28
  5. Step 5: Solve for x
    x = 8,448,555,202.28/115,373
  6. Step 6: Final answer
    x = 73,228.18

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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.