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Finding the Fourth Proportional to 609,657.36, 914,151.96 and 188,816.40

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Solution

The fourth proportional to 609,657.36, 914,151.96 and 188,816.40 is: 283,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,657.36 : 914,151.96 = 188,816.40 : x
  2. Step 2: Convert to fraction form
    609,657.36/914,151.96 = 188,816.40/x
  3. Step 3: Cross multiply
    609,657.36x = 914,151.96 × 188,816.40
  4. Step 4: Simplify right side
    609,657.36x = 172,606,882,140.14
  5. Step 5: Solve for x
    x = 172,606,882,140.14/609,657.36
  6. Step 6: Final answer
    x = 283,121.13

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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.