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Finding the Fourth Proportional to 356,669.82, 535,033.92 and 146,309.58

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Solution

The fourth proportional to 356,669.82, 535,033.92 and 146,309.58 is: 219,476.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,669.82 : 535,033.92 = 146,309.58 : x
  2. Step 2: Convert to fraction form
    356,669.82/535,033.92 = 146,309.58/x
  3. Step 3: Cross multiply
    356,669.82x = 535,033.92 × 146,309.58
  4. Step 4: Simplify right side
    356,669.82x = 78,280,588,120.95
  5. Step 5: Solve for x
    x = 78,280,588,120.95/356,669.82
  6. Step 6: Final answer
    x = 219,476.34

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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.