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Finding the Fourth Proportional to 70,483.30, 97,268.87 and 40,273.54

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Solution

The fourth proportional to 70,483.30, 97,268.87 and 40,273.54 is: 55,578.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,483.30 : 97,268.87 = 40,273.54 : x
  2. Step 2: Convert to fraction form
    70,483.30/97,268.87 = 40,273.54/x
  3. Step 3: Cross multiply
    70,483.30x = 97,268.87 × 40,273.54
  4. Step 4: Simplify right side
    70,483.30x = 3,917,361,584.21
  5. Step 5: Solve for x
    x = 3,917,361,584.21/70,483.30
  6. Step 6: Final answer
    x = 55,578.58

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Why These Related Problems?

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