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Finding the Fourth Proportional to 369,272.82, 553,687.70 and 169,342.77

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Solution

The fourth proportional to 369,272.82, 553,687.70 and 169,342.77 is: 253,912.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,272.82 : 553,687.70 = 169,342.77 : x
  2. Step 2: Convert to fraction form
    369,272.82/553,687.70 = 169,342.77/x
  3. Step 3: Cross multiply
    369,272.82x = 553,687.70 × 169,342.77
  4. Step 4: Simplify right side
    369,272.82x = 93,763,007,986.22
  5. Step 5: Solve for x
    x = 93,763,007,986.22/369,272.82
  6. Step 6: Final answer
    x = 253,912.56

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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.