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Finding the Fourth Proportional to 245,877.90, 368,766.45 and 68,340.30

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Solution

The fourth proportional to 245,877.90, 368,766.45 and 68,340.30 is: 102,496.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,877.90 : 368,766.45 = 68,340.30 : x
  2. Step 2: Convert to fraction form
    245,877.90/368,766.45 = 68,340.30/x
  3. Step 3: Cross multiply
    245,877.90x = 368,766.45 × 68,340.30
  4. Step 4: Simplify right side
    245,877.90x = 25,201,609,822.94
  5. Step 5: Solve for x
    x = 25,201,609,822.94/245,877.90
  6. Step 6: Final answer
    x = 102,496.44

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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.