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Finding the Fourth Proportional to 376,728.48, 565,004.88 and 140,182.56

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Solution

The fourth proportional to 376,728.48, 565,004.88 and 140,182.56 is: 210,241.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,728.48 : 565,004.88 = 140,182.56 : x
  2. Step 2: Convert to fraction form
    376,728.48/565,004.88 = 140,182.56/x
  3. Step 3: Cross multiply
    376,728.48x = 565,004.88 × 140,182.56
  4. Step 4: Simplify right side
    376,728.48x = 79,203,830,490.89
  5. Step 5: Solve for x
    x = 79,203,830,490.89/376,728.48
  6. Step 6: Final answer
    x = 210,241.15

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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.