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Finding the Fourth Proportional to 304,969.76, 420,874.44 and 169,018.52

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Solution

The fourth proportional to 304,969.76, 420,874.44 and 169,018.52 is: 233,254.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,969.76 : 420,874.44 = 169,018.52 : x
  2. Step 2: Convert to fraction form
    304,969.76/420,874.44 = 169,018.52/x
  3. Step 3: Cross multiply
    304,969.76x = 420,874.44 × 169,018.52
  4. Step 4: Simplify right side
    304,969.76x = 71,135,574,954.63
  5. Step 5: Solve for x
    x = 71,135,574,954.63/304,969.76
  6. Step 6: Final answer
    x = 233,254.52

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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.