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Finding the Fourth Proportional to 304,496.73, 420,159.15 and 173,675.52

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Solution

The fourth proportional to 304,496.73, 420,159.15 and 173,675.52 is: 239,645.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,496.73 : 420,159.15 = 173,675.52 : x
  2. Step 2: Convert to fraction form
    304,496.73/420,159.15 = 173,675.52/x
  3. Step 3: Cross multiply
    304,496.73x = 420,159.15 × 173,675.52
  4. Step 4: Simplify right side
    304,496.73x = 72,971,358,859.01
  5. Step 5: Solve for x
    x = 72,971,358,859.01/304,496.73
  6. Step 6: Final answer
    x = 239,645.79

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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.