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Finding the Fourth Proportional to 304,578.51, 456,971.60 and 91,351.63

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Solution

The fourth proportional to 304,578.51, 456,971.60 and 91,351.63 is: 137,058.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,578.51 : 456,971.60 = 91,351.63 : x
  2. Step 2: Convert to fraction form
    304,578.51/456,971.60 = 91,351.63/x
  3. Step 3: Cross multiply
    304,578.51x = 456,971.60 × 91,351.63
  4. Step 4: Simplify right side
    304,578.51x = 41,745,098,924.52
  5. Step 5: Solve for x
    x = 41,745,098,924.52/304,578.51
  6. Step 6: Final answer
    x = 137,058.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.