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Finding the Fourth Proportional to 368,812.31, 553,072.91 and 179,216.51

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Solution

The fourth proportional to 368,812.31, 553,072.91 and 179,216.51 is: 268,754.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,812.31 : 553,072.91 = 179,216.51 : x
  2. Step 2: Convert to fraction form
    368,812.31/553,072.91 = 179,216.51/x
  3. Step 3: Cross multiply
    368,812.31x = 553,072.91 × 179,216.51
  4. Step 4: Simplify right side
    368,812.31x = 99,119,793,044.30
  5. Step 5: Solve for x
    x = 99,119,793,044.30/368,812.31
  6. Step 6: Final answer
    x = 268,754.03

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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.