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Finding the Fourth Proportional to 384,561.12, 577,203.48 and 195,157.44

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Solution

The fourth proportional to 384,561.12, 577,203.48 and 195,157.44 is: 292,919.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,561.12 : 577,203.48 = 195,157.44 : x
  2. Step 2: Convert to fraction form
    384,561.12/577,203.48 = 195,157.44/x
  3. Step 3: Cross multiply
    384,561.12x = 577,203.48 × 195,157.44
  4. Step 4: Simplify right side
    384,561.12x = 112,645,553,515.89
  5. Step 5: Solve for x
    x = 112,645,553,515.89/384,561.12
  6. Step 6: Final answer
    x = 292,919.77

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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.