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Finding the Fourth Proportional to 66,352.40, 91,563.24 and 36,137.60

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Solution

The fourth proportional to 66,352.40, 91,563.24 and 36,137.60 is: 49,868.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,352.40 : 91,563.24 = 36,137.60 : x
  2. Step 2: Convert to fraction form
    66,352.40/91,563.24 = 36,137.60/x
  3. Step 3: Cross multiply
    66,352.40x = 91,563.24 × 36,137.60
  4. Step 4: Simplify right side
    66,352.40x = 3,308,875,741.82
  5. Step 5: Solve for x
    x = 3,308,875,741.82/66,352.40
  6. Step 6: Final answer
    x = 49,868.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.