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Finding the Fourth Proportional to 72,464.52, 108,521.22 and 36,832.08

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Solution

The fourth proportional to 72,464.52, 108,521.22 and 36,832.08 is: 55,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,464.52 : 108,521.22 = 36,832.08 : x
  2. Step 2: Convert to fraction form
    72,464.52/108,521.22 = 36,832.08/x
  3. Step 3: Cross multiply
    72,464.52x = 108,521.22 × 36,832.08
  4. Step 4: Simplify right side
    72,464.52x = 3,997,062,256.74
  5. Step 5: Solve for x
    x = 3,997,062,256.74/72,464.52
  6. Step 6: Final answer
    x = 55,158.89

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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.