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Finding the Fourth Proportional to 99,221.54, 136,927.26 and 53,900.42

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Solution

The fourth proportional to 99,221.54, 136,927.26 and 53,900.42 is: 74,383.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,221.54 : 136,927.26 = 53,900.42 : x
  2. Step 2: Convert to fraction form
    99,221.54/136,927.26 = 53,900.42/x
  3. Step 3: Cross multiply
    99,221.54x = 136,927.26 × 53,900.42
  4. Step 4: Simplify right side
    99,221.54x = 7,380,436,138.81
  5. Step 5: Solve for x
    x = 7,380,436,138.81/99,221.54
  6. Step 6: Final answer
    x = 74,383.41

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1.5x scale

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.