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Finding the Fourth Proportional to 142,950.64, 214,396.80 and 54,173.56

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Solution

The fourth proportional to 142,950.64, 214,396.80 and 54,173.56 is: 81,249.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,950.64 : 214,396.80 = 54,173.56 : x
  2. Step 2: Convert to fraction form
    142,950.64/214,396.80 = 54,173.56/x
  3. Step 3: Cross multiply
    142,950.64x = 214,396.80 × 54,173.56
  4. Step 4: Simplify right side
    142,950.64x = 11,614,637,908.61
  5. Step 5: Solve for x
    x = 11,614,637,908.61/142,950.64
  6. Step 6: Final answer
    x = 81,249.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.