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Finding the Fourth Proportional to 54,316.40, 81,474.60 and 44,985.20

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Solution

The fourth proportional to 54,316.40, 81,474.60 and 44,985.20 is: 67,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,316.40 : 81,474.60 = 44,985.20 : x
  2. Step 2: Convert to fraction form
    54,316.40/81,474.60 = 44,985.20/x
  3. Step 3: Cross multiply
    54,316.40x = 81,474.60 × 44,985.20
  4. Step 4: Simplify right side
    54,316.40x = 3,665,151,175.92
  5. Step 5: Solve for x
    x = 3,665,151,175.92/54,316.40
  6. Step 6: Final answer
    x = 67,477.80

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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.