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Finding the Fourth Proportional to 99,349.50, 137,103.22 and 54,027.91

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Solution

The fourth proportional to 99,349.50, 137,103.22 and 54,027.91 is: 74,559.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,349.50 : 137,103.22 = 54,027.91 : x
  2. Step 2: Convert to fraction form
    99,349.50/137,103.22 = 54,027.91/x
  3. Step 3: Cross multiply
    99,349.50x = 137,103.22 × 54,027.91
  4. Step 4: Simplify right side
    99,349.50x = 7,407,400,430.87
  5. Step 5: Solve for x
    x = 7,407,400,430.87/99,349.50
  6. Step 6: Final answer
    x = 74,559.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.