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Finding the Fourth Proportional to 304,272.35, 419,859.40 and 168,287.93

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Solution

The fourth proportional to 304,272.35, 419,859.40 and 168,287.93 is: 232,217.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,272.35 : 419,859.40 = 168,287.93 : x
  2. Step 2: Convert to fraction form
    304,272.35/419,859.40 = 168,287.93/x
  3. Step 3: Cross multiply
    304,272.35x = 419,859.40 × 168,287.93
  4. Step 4: Simplify right side
    304,272.35x = 70,657,269,317.04
  5. Step 5: Solve for x
    x = 70,657,269,317.04/304,272.35
  6. Step 6: Final answer
    x = 232,217.19

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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.