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Finding the Fourth Proportional to 500,937.68, 751,521.72 and 163,989.20

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Solution

The fourth proportional to 500,937.68, 751,521.72 and 163,989.20 is: 246,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,937.68 : 751,521.72 = 163,989.20 : x
  2. Step 2: Convert to fraction form
    500,937.68/751,521.72 = 163,989.20/x
  3. Step 3: Cross multiply
    500,937.68x = 751,521.72 × 163,989.20
  4. Step 4: Simplify right side
    500,937.68x = 123,241,445,645.42
  5. Step 5: Solve for x
    x = 123,241,445,645.42/500,937.68
  6. Step 6: Final answer
    x = 246,021.51

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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.