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Finding the Fourth Proportional to 303,118.92, 454,617 and 103,330.98

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Solution

The fourth proportional to 303,118.92, 454,617 and 103,330.98 is: 154,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,118.92 : 454,617 = 103,330.98 : x
  2. Step 2: Convert to fraction form
    303,118.92/454,617 = 103,330.98/x
  3. Step 3: Cross multiply
    303,118.92x = 454,617 × 103,330.98
  4. Step 4: Simplify right side
    303,118.92x = 46,976,020,134.66
  5. Step 5: Solve for x
    x = 46,976,020,134.66/303,118.92
  6. Step 6: Final answer
    x = 154,975.55

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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.