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Finding the Fourth Proportional to 99,569.37, 137,404.11 and 54,247.92

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Solution

The fourth proportional to 99,569.37, 137,404.11 and 54,247.92 is: 74,861.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,569.37 : 137,404.11 = 54,247.92 : x
  2. Step 2: Convert to fraction form
    99,569.37/137,404.11 = 54,247.92/x
  3. Step 3: Cross multiply
    99,569.37x = 137,404.11 × 54,247.92
  4. Step 4: Simplify right side
    99,569.37x = 7,453,887,166.95
  5. Step 5: Solve for x
    x = 7,453,887,166.95/99,569.37
  6. Step 6: Final answer
    x = 74,861.25

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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.