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Finding the Fourth Proportional to 90,696, 136,051.84 and 25,032

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Solution

The fourth proportional to 90,696, 136,051.84 and 25,032 is: 37,550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,696 : 136,051.84 = 25,032 : x
  2. Step 2: Convert to fraction form
    90,696/136,051.84 = 25,032/x
  3. Step 3: Cross multiply
    90,696x = 136,051.84 × 25,032
  4. Step 4: Simplify right side
    90,696x = 3,405,649,658.88
  5. Step 5: Solve for x
    x = 3,405,649,658.88/90,696
  6. Step 6: Final answer
    x = 37,550.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.