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Finding the Fourth Proportional to 136,985.44, 205,524.84 and 73,812.04

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Solution

The fourth proportional to 136,985.44, 205,524.84 and 73,812.04 is: 110,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,985.44 : 205,524.84 = 73,812.04 : x
  2. Step 2: Convert to fraction form
    136,985.44/205,524.84 = 73,812.04/x
  3. Step 3: Cross multiply
    136,985.44x = 205,524.84 × 73,812.04
  4. Step 4: Simplify right side
    136,985.44x = 15,170,207,711.07
  5. Step 5: Solve for x
    x = 15,170,207,711.07/136,985.44
  6. Step 6: Final answer
    x = 110,743.21

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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.