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Finding the Fourth Proportional to 384,625.62, 576,945.86 and 118,385.86

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Solution

The fourth proportional to 384,625.62, 576,945.86 and 118,385.86 is: 177,581.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,625.62 : 576,945.86 = 118,385.86 : x
  2. Step 2: Convert to fraction form
    384,625.62/576,945.86 = 118,385.86/x
  3. Step 3: Cross multiply
    384,625.62x = 576,945.86 × 118,385.86
  4. Step 4: Simplify right side
    384,625.62x = 68,302,233,825.10
  5. Step 5: Solve for x
    x = 68,302,233,825.10/384,625.62
  6. Step 6: Final answer
    x = 177,581.08

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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.