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Finding the Fourth Proportional to 168,395.78, 252,634.03 and 56,077.01

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Solution

The fourth proportional to 168,395.78, 252,634.03 and 56,077.01 is: 84,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,395.78 : 252,634.03 = 56,077.01 : x
  2. Step 2: Convert to fraction form
    168,395.78/252,634.03 = 56,077.01/x
  3. Step 3: Cross multiply
    168,395.78x = 252,634.03 × 56,077.01
  4. Step 4: Simplify right side
    168,395.78x = 14,166,960,570.67
  5. Step 5: Solve for x
    x = 14,166,960,570.67/168,395.78
  6. Step 6: Final answer
    x = 84,128.95

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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.