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Finding the Fourth Proportional to 61,135.56, 91,567.87 and 46,991.44

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Solution

The fourth proportional to 61,135.56, 91,567.87 and 46,991.44 is: 70,383.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,135.56 : 91,567.87 = 46,991.44 : x
  2. Step 2: Convert to fraction form
    61,135.56/91,567.87 = 46,991.44/x
  3. Step 3: Cross multiply
    61,135.56x = 91,567.87 × 46,991.44
  4. Step 4: Simplify right side
    61,135.56x = 4,302,905,834.08
  5. Step 5: Solve for x
    x = 4,302,905,834.08/61,135.56
  6. Step 6: Final answer
    x = 70,383.03

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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.