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Finding the Fourth Proportional to 254,803.71, 382,214.25 and 67,815.39

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Solution

The fourth proportional to 254,803.71, 382,214.25 and 67,815.39 is: 101,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,803.71 : 382,214.25 = 67,815.39 : x
  2. Step 2: Convert to fraction form
    254,803.71/382,214.25 = 67,815.39/x
  3. Step 3: Cross multiply
    254,803.71x = 382,214.25 × 67,815.39
  4. Step 4: Simplify right side
    254,803.71x = 25,920,008,427.31
  5. Step 5: Solve for x
    x = 25,920,008,427.31/254,803.71
  6. Step 6: Final answer
    x = 101,725.40

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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.