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Finding the Fourth Proportional to 168,040, 251,970.90 and 49,694.95

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Solution

The fourth proportional to 168,040, 251,970.90 and 49,694.95 is: 74,516.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,040 : 251,970.90 = 49,694.95 : x
  2. Step 2: Convert to fraction form
    168,040/251,970.90 = 49,694.95/x
  3. Step 3: Cross multiply
    168,040x = 251,970.90 × 49,694.95
  4. Step 4: Simplify right side
    168,040x = 12,521,681,276.96
  5. Step 5: Solve for x
    x = 12,521,681,276.96/168,040
  6. Step 6: Final answer
    x = 74,516.08

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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.