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Finding the Fourth Proportional to 368,863.31, 552,925.61 and 143,914.26

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Solution

The fourth proportional to 368,863.31, 552,925.61 and 143,914.26 is: 215,727.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,863.31 : 552,925.61 = 143,914.26 : x
  2. Step 2: Convert to fraction form
    368,863.31/552,925.61 = 143,914.26/x
  3. Step 3: Cross multiply
    368,863.31x = 552,925.61 × 143,914.26
  4. Step 4: Simplify right side
    368,863.31x = 79,573,881,891.78
  5. Step 5: Solve for x
    x = 79,573,881,891.78/368,863.31
  6. Step 6: Final answer
    x = 215,727.29

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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.