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Finding the Fourth Proportional to 174,657.22, 261,766.77 and 74,700.07

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Solution

The fourth proportional to 174,657.22, 261,766.77 and 74,700.07 is: 111,956.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,657.22 : 261,766.77 = 74,700.07 : x
  2. Step 2: Convert to fraction form
    174,657.22/261,766.77 = 74,700.07/x
  3. Step 3: Cross multiply
    174,657.22x = 261,766.77 × 74,700.07
  4. Step 4: Simplify right side
    174,657.22x = 19,553,996,042.67
  5. Step 5: Solve for x
    x = 19,553,996,042.67/174,657.22
  6. Step 6: Final answer
    x = 111,956.41

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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.