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Finding the Fourth Proportional to 99,156.88, 136,835.73 and 53,833.96

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Solution

The fourth proportional to 99,156.88, 136,835.73 and 53,833.96 is: 74,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,156.88 : 136,835.73 = 53,833.96 : x
  2. Step 2: Convert to fraction form
    99,156.88/136,835.73 = 53,833.96/x
  3. Step 3: Cross multiply
    99,156.88x = 136,835.73 × 53,833.96
  4. Step 4: Simplify right side
    99,156.88x = 7,366,408,873.30
  5. Step 5: Solve for x
    x = 7,366,408,873.30/99,156.88
  6. Step 6: Final answer
    x = 74,290.45

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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.