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Finding the Fourth Proportional to 536,530.72, 804,920.48 and 157,436.16

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Solution

The fourth proportional to 536,530.72, 804,920.48 and 157,436.16 is: 236,190.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,530.72 : 804,920.48 = 157,436.16 : x
  2. Step 2: Convert to fraction form
    536,530.72/804,920.48 = 157,436.16/x
  3. Step 3: Cross multiply
    536,530.72x = 804,920.48 × 157,436.16
  4. Step 4: Simplify right side
    536,530.72x = 126,723,589,476.56
  5. Step 5: Solve for x
    x = 126,723,589,476.56/536,530.72
  6. Step 6: Final answer
    x = 236,190.74

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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.