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Finding the Fourth Proportional to 248,992.40, 373,263.64 and 91,110.80

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Solution

The fourth proportional to 248,992.40, 373,263.64 and 91,110.80 is: 136,583.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,992.40 : 373,263.64 = 91,110.80 : x
  2. Step 2: Convert to fraction form
    248,992.40/373,263.64 = 91,110.80/x
  3. Step 3: Cross multiply
    248,992.40x = 373,263.64 × 91,110.80
  4. Step 4: Simplify right side
    248,992.40x = 34,008,348,851.31
  5. Step 5: Solve for x
    x = 34,008,348,851.31/248,992.40
  6. Step 6: Final answer
    x = 136,583.88

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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.