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Finding the Fourth Proportional to 99,222, 136,924.80 and 53,900.52

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Solution

The fourth proportional to 99,222, 136,924.80 and 53,900.52 is: 74,381.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,222 : 136,924.80 = 53,900.52 : x
  2. Step 2: Convert to fraction form
    99,222/136,924.80 = 53,900.52/x
  3. Step 3: Cross multiply
    99,222x = 136,924.80 × 53,900.52
  4. Step 4: Simplify right side
    99,222x = 7,380,317,920.90
  5. Step 5: Solve for x
    x = 7,380,317,920.90/99,222
  6. Step 6: Final answer
    x = 74,381.87

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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.