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Finding the Fourth Proportional to 61,187.40, 91,664.10 and 41,368.68

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Solution

The fourth proportional to 61,187.40, 91,664.10 and 41,368.68 is: 61,973.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,187.40 : 91,664.10 = 41,368.68 : x
  2. Step 2: Convert to fraction form
    61,187.40/91,664.10 = 41,368.68/x
  3. Step 3: Cross multiply
    61,187.40x = 91,664.10 × 41,368.68
  4. Step 4: Simplify right side
    61,187.40x = 3,792,022,820.39
  5. Step 5: Solve for x
    x = 3,792,022,820.39/61,187.40
  6. Step 6: Final answer
    x = 61,973.92

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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.