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Finding the Fourth Proportional to 268,965.84, 403,261.92 and 119,124.48

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Solution

The fourth proportional to 268,965.84, 403,261.92 and 119,124.48 is: 178,603.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,965.84 : 403,261.92 = 119,124.48 : x
  2. Step 2: Convert to fraction form
    268,965.84/403,261.92 = 119,124.48/x
  3. Step 3: Cross multiply
    268,965.84x = 403,261.92 × 119,124.48
  4. Step 4: Simplify right side
    268,965.84x = 48,038,366,523.80
  5. Step 5: Solve for x
    x = 48,038,366,523.80/268,965.84
  6. Step 6: Final answer
    x = 178,603.97

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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.