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Finding the Fourth Proportional to 99,348.99, 137,102.53 and 54,027.41

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Solution

The fourth proportional to 99,348.99, 137,102.53 and 54,027.41 is: 74,558.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,348.99 : 137,102.53 = 54,027.41 : x
  2. Step 2: Convert to fraction form
    99,348.99/137,102.53 = 54,027.41/x
  3. Step 3: Cross multiply
    99,348.99x = 137,102.53 × 54,027.41
  4. Step 4: Simplify right side
    99,348.99x = 7,407,294,496.50
  5. Step 5: Solve for x
    x = 7,407,294,496.50/99,348.99
  6. Step 6: Final answer
    x = 74,558.32

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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.