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Finding the Fourth Proportional to 268,894.84, 403,248.24 and 79,304.92

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Solution

The fourth proportional to 268,894.84, 403,248.24 and 79,304.92 is: 118,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,894.84 : 403,248.24 = 79,304.92 : x
  2. Step 2: Convert to fraction form
    268,894.84/403,248.24 = 79,304.92/x
  3. Step 3: Cross multiply
    268,894.84x = 403,248.24 × 79,304.92
  4. Step 4: Simplify right side
    268,894.84x = 31,979,569,413.34
  5. Step 5: Solve for x
    x = 31,979,569,413.34/268,894.84
  6. Step 6: Final answer
    x = 118,929.65

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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.