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Finding the Fourth Proportional to 168,605.85, 252,746.43 and 56,207.72

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Solution

The fourth proportional to 168,605.85, 252,746.43 and 56,207.72 is: 84,257.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,605.85 : 252,746.43 = 56,207.72 : x
  2. Step 2: Convert to fraction form
    168,605.85/252,746.43 = 56,207.72/x
  3. Step 3: Cross multiply
    168,605.85x = 252,746.43 × 56,207.72
  4. Step 4: Simplify right side
    168,605.85x = 14,206,300,989.53
  5. Step 5: Solve for x
    x = 14,206,300,989.53/168,605.85
  6. Step 6: Final answer
    x = 84,257.46

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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.