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Finding the Fourth Proportional to 248,906.40, 373,140.90 and 149,106.30

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Solution

The fourth proportional to 248,906.40, 373,140.90 and 149,106.30 is: 223,528.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,906.40 : 373,140.90 = 149,106.30 : x
  2. Step 2: Convert to fraction form
    248,906.40/373,140.90 = 149,106.30/x
  3. Step 3: Cross multiply
    248,906.40x = 373,140.90 × 149,106.30
  4. Step 4: Simplify right side
    248,906.40x = 55,637,658,977.67
  5. Step 5: Solve for x
    x = 55,637,658,977.67/248,906.40
  6. Step 6: Final answer
    x = 223,528.44

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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.