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Finding the Fourth Proportional to 304,872.96, 420,737.28 and 170,737.92

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Solution

The fourth proportional to 304,872.96, 420,737.28 and 170,737.92 is: 235,625.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,872.96 : 420,737.28 = 170,737.92 : x
  2. Step 2: Convert to fraction form
    304,872.96/420,737.28 = 170,737.92/x
  3. Step 3: Cross multiply
    304,872.96x = 420,737.28 × 170,737.92
  4. Step 4: Simplify right side
    304,872.96x = 71,835,808,053.66
  5. Step 5: Solve for x
    x = 71,835,808,053.66/304,872.96
  6. Step 6: Final answer
    x = 235,625.38

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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.