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Finding the Fourth Proportional to 73,312.88, 109,961.40 and 49,771.76

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Solution

The fourth proportional to 73,312.88, 109,961.40 and 49,771.76 is: 74,652.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,312.88 : 109,961.40 = 49,771.76 : x
  2. Step 2: Convert to fraction form
    73,312.88/109,961.40 = 49,771.76/x
  3. Step 3: Cross multiply
    73,312.88x = 109,961.40 × 49,771.76
  4. Step 4: Simplify right side
    73,312.88x = 5,472,972,410.06
  5. Step 5: Solve for x
    x = 5,472,972,410.06/73,312.88
  6. Step 6: Final answer
    x = 74,652.26

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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.