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Finding the Fourth Proportional to 168,706.73, 253,053.62 and 42,346.73

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Solution

The fourth proportional to 168,706.73, 253,053.62 and 42,346.73 is: 63,518.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,706.73 : 253,053.62 = 42,346.73 : x
  2. Step 2: Convert to fraction form
    168,706.73/253,053.62 = 42,346.73/x
  3. Step 3: Cross multiply
    168,706.73x = 253,053.62 × 42,346.73
  4. Step 4: Simplify right side
    168,706.73x = 10,715,993,109.93
  5. Step 5: Solve for x
    x = 10,715,993,109.93/168,706.73
  6. Step 6: Final answer
    x = 63,518.47

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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.