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Finding the Fourth Proportional to 68,903.22, 103,258.56 and 37,245.06

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Solution

The fourth proportional to 68,903.22, 103,258.56 and 37,245.06 is: 55,815.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,903.22 : 103,258.56 = 37,245.06 : x
  2. Step 2: Convert to fraction form
    68,903.22/103,258.56 = 37,245.06/x
  3. Step 3: Cross multiply
    68,903.22x = 103,258.56 × 37,245.06
  4. Step 4: Simplify right side
    68,903.22x = 3,845,871,262.71
  5. Step 5: Solve for x
    x = 3,845,871,262.71/68,903.22
  6. Step 6: Final answer
    x = 55,815.55

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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.