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Finding the Fourth Proportional to 376,943.55, 565,485.38 and 124,241.78

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Solution

The fourth proportional to 376,943.55, 565,485.38 and 124,241.78 is: 186,385.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,943.55 : 565,485.38 = 124,241.78 : x
  2. Step 2: Convert to fraction form
    376,943.55/565,485.38 = 124,241.78/x
  3. Step 3: Cross multiply
    376,943.55x = 565,485.38 × 124,241.78
  4. Step 4: Simplify right side
    376,943.55x = 70,256,906,726.54
  5. Step 5: Solve for x
    x = 70,256,906,726.54/376,943.55
  6. Step 6: Final answer
    x = 186,385.75

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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.