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Finding the Fourth Proportional to 54,321.40, 81,482.10 and 52,353.10

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Solution

The fourth proportional to 54,321.40, 81,482.10 and 52,353.10 is: 78,529.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,321.40 : 81,482.10 = 52,353.10 : x
  2. Step 2: Convert to fraction form
    54,321.40/81,482.10 = 52,353.10/x
  3. Step 3: Cross multiply
    54,321.40x = 81,482.10 × 52,353.10
  4. Step 4: Simplify right side
    54,321.40x = 4,265,840,529.51
  5. Step 5: Solve for x
    x = 4,265,840,529.51/54,321.40
  6. Step 6: Final answer
    x = 78,529.65

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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.