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Finding the Fourth Proportional to 174,873.92, 262,393.86 and 90,618.33

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Solution

The fourth proportional to 174,873.92, 262,393.86 and 90,618.33 is: 135,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,873.92 : 262,393.86 = 90,618.33 : x
  2. Step 2: Convert to fraction form
    174,873.92/262,393.86 = 90,618.33/x
  3. Step 3: Cross multiply
    174,873.92x = 262,393.86 × 90,618.33
  4. Step 4: Simplify right side
    174,873.92x = 23,777,693,395.45
  5. Step 5: Solve for x
    x = 23,777,693,395.45/174,873.92
  6. Step 6: Final answer
    x = 135,970.50

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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.