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Finding the Fourth Proportional to 248,621.40, 372,713.40 and 148,821.30

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Solution

The fourth proportional to 248,621.40, 372,713.40 and 148,821.30 is: 223,101.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,621.40 : 372,713.40 = 148,821.30 : x
  2. Step 2: Convert to fraction form
    248,621.40/372,713.40 = 148,821.30/x
  3. Step 3: Cross multiply
    248,621.40x = 372,713.40 × 148,821.30
  4. Step 4: Simplify right side
    248,621.40x = 55,467,692,715.42
  5. Step 5: Solve for x
    x = 55,467,692,715.42/248,621.40
  6. Step 6: Final answer
    x = 223,101.04

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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.