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Finding the Fourth Proportional to 304,517.56, 420,223.47 and 168,551.77

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Solution

The fourth proportional to 304,517.56, 420,223.47 and 168,551.77 is: 232,595.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,517.56 : 420,223.47 = 168,551.77 : x
  2. Step 2: Convert to fraction form
    304,517.56/420,223.47 = 168,551.77/x
  3. Step 3: Cross multiply
    304,517.56x = 420,223.47 × 168,551.77
  4. Step 4: Simplify right side
    304,517.56x = 70,829,409,664.04
  5. Step 5: Solve for x
    x = 70,829,409,664.04/304,517.56
  6. Step 6: Final answer
    x = 232,595.49

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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.