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Finding the Fourth Proportional to 304,085.86, 419,626.11 and 168,111.16

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Solution

The fourth proportional to 304,085.86, 419,626.11 and 168,111.16 is: 231,986.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,085.86 : 419,626.11 = 168,111.16 : x
  2. Step 2: Convert to fraction form
    304,085.86/419,626.11 = 168,111.16/x
  3. Step 3: Cross multiply
    304,085.86x = 419,626.11 × 168,111.16
  4. Step 4: Simplify right side
    304,085.86x = 70,543,832,118.39
  5. Step 5: Solve for x
    x = 70,543,832,118.39/304,085.86
  6. Step 6: Final answer
    x = 231,986.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.