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Finding the Fourth Proportional to 268,452.23, 402,669.02 and 68,774.60

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Solution

The fourth proportional to 268,452.23, 402,669.02 and 68,774.60 is: 103,159.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,452.23 : 402,669.02 = 68,774.60 : x
  2. Step 2: Convert to fraction form
    268,452.23/402,669.02 = 68,774.60/x
  3. Step 3: Cross multiply
    268,452.23x = 402,669.02 × 68,774.60
  4. Step 4: Simplify right side
    268,452.23x = 27,693,401,961.50
  5. Step 5: Solve for x
    x = 27,693,401,961.50/268,452.23
  6. Step 6: Final answer
    x = 103,159.52

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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.