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Finding the Fourth Proportional to 303,243.30, 454,864.95 and 78,601.95

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Solution

The fourth proportional to 303,243.30, 454,864.95 and 78,601.95 is: 117,902.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,243.30 : 454,864.95 = 78,601.95 : x
  2. Step 2: Convert to fraction form
    303,243.30/454,864.95 = 78,601.95/x
  3. Step 3: Cross multiply
    303,243.30x = 454,864.95 × 78,601.95
  4. Step 4: Simplify right side
    303,243.30x = 35,753,272,056.65
  5. Step 5: Solve for x
    x = 35,753,272,056.65/303,243.30
  6. Step 6: Final answer
    x = 117,902.93

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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.