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Finding the Fourth Proportional to 168,688.91, 253,046.40 and 56,369.52

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Solution

The fourth proportional to 168,688.91, 253,046.40 and 56,369.52 is: 84,558.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,688.91 : 253,046.40 = 56,369.52 : x
  2. Step 2: Convert to fraction form
    168,688.91/253,046.40 = 56,369.52/x
  3. Step 3: Cross multiply
    168,688.91x = 253,046.40 × 56,369.52
  4. Step 4: Simplify right side
    168,688.91x = 14,264,104,105.73
  5. Step 5: Solve for x
    x = 14,264,104,105.73/168,688.91
  6. Step 6: Final answer
    x = 84,558.64

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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.