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Finding the Fourth Proportional to 240,872.66, 361,368.93 and 72,395.70

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Solution

The fourth proportional to 240,872.66, 361,368.93 and 72,395.70 is: 108,611.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,872.66 : 361,368.93 = 72,395.70 : x
  2. Step 2: Convert to fraction form
    240,872.66/361,368.93 = 72,395.70/x
  3. Step 3: Cross multiply
    240,872.66x = 361,368.93 × 72,395.70
  4. Step 4: Simplify right side
    240,872.66x = 26,161,556,645.60
  5. Step 5: Solve for x
    x = 26,161,556,645.60/240,872.66
  6. Step 6: Final answer
    x = 108,611.57

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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.