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Finding the Fourth Proportional to 107,886.30, 161,768.70 and 41,328.60

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Solution

The fourth proportional to 107,886.30, 161,768.70 and 41,328.60 is: 61,969.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,886.30 : 161,768.70 = 41,328.60 : x
  2. Step 2: Convert to fraction form
    107,886.30/161,768.70 = 41,328.60/x
  3. Step 3: Cross multiply
    107,886.30x = 161,768.70 × 41,328.60
  4. Step 4: Simplify right side
    107,886.30x = 6,685,673,894.82
  5. Step 5: Solve for x
    x = 6,685,673,894.82/107,886.30
  6. Step 6: Final answer
    x = 61,969.63

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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.