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Finding the Fourth Proportional to 194,617.20, 291,277.80 and 141,157.20

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Solution

The fourth proportional to 194,617.20, 291,277.80 and 141,157.20 is: 211,265.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,617.20 : 291,277.80 = 141,157.20 : x
  2. Step 2: Convert to fraction form
    194,617.20/291,277.80 = 141,157.20/x
  3. Step 3: Cross multiply
    194,617.20x = 291,277.80 × 141,157.20
  4. Step 4: Simplify right side
    194,617.20x = 41,115,958,670.16
  5. Step 5: Solve for x
    x = 41,115,958,670.16/194,617.20
  6. Step 6: Final answer
    x = 211,265.80

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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.