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Finding the Fourth Proportional to 304,265.88, 419,878.08 and 168,305.28

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Solution

The fourth proportional to 304,265.88, 419,878.08 and 168,305.28 is: 232,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,265.88 : 419,878.08 = 168,305.28 : x
  2. Step 2: Convert to fraction form
    304,265.88/419,878.08 = 168,305.28/x
  3. Step 3: Cross multiply
    304,265.88x = 419,878.08 × 168,305.28
  4. Step 4: Simplify right side
    304,265.88x = 70,667,697,820.26
  5. Step 5: Solve for x
    x = 70,667,697,820.26/304,265.88
  6. Step 6: Final answer
    x = 232,256.40

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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.