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Finding the Fourth Proportional to 248,758.64, 373,193.40 and 90,983.60

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Solution

The fourth proportional to 248,758.64, 373,193.40 and 90,983.60 is: 136,495.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,758.64 : 373,193.40 = 90,983.60 : x
  2. Step 2: Convert to fraction form
    248,758.64/373,193.40 = 90,983.60/x
  3. Step 3: Cross multiply
    248,758.64x = 373,193.40 × 90,983.60
  4. Step 4: Simplify right side
    248,758.64x = 33,954,479,028.24
  5. Step 5: Solve for x
    x = 33,954,479,028.24/248,758.64
  6. Step 6: Final answer
    x = 136,495.68

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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.