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Finding the Fourth Proportional to 304,091.61, 419,634.05 and 168,116.91

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Solution

The fourth proportional to 304,091.61, 419,634.05 and 168,116.91 is: 231,994.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,091.61 : 419,634.05 = 168,116.91 : x
  2. Step 2: Convert to fraction form
    304,091.61/419,634.05 = 168,116.91/x
  3. Step 3: Cross multiply
    304,091.61x = 419,634.05 × 168,116.91
  4. Step 4: Simplify right side
    304,091.61x = 70,547,578,976.20
  5. Step 5: Solve for x
    x = 70,547,578,976.20/304,091.61
  6. Step 6: Final answer
    x = 231,994.49

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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.