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Finding the Fourth Proportional to 248,855.20, 373,282.80 and 149,322.40

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Solution

The fourth proportional to 248,855.20, 373,282.80 and 149,322.40 is: 223,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,855.20 : 373,282.80 = 149,322.40 : x
  2. Step 2: Convert to fraction form
    248,855.20/373,282.80 = 149,322.40/x
  3. Step 3: Cross multiply
    248,855.20x = 373,282.80 × 149,322.40
  4. Step 4: Simplify right side
    248,855.20x = 55,739,483,574.72
  5. Step 5: Solve for x
    x = 55,739,483,574.72/248,855.20
  6. Step 6: Final answer
    x = 223,983.60

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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.