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Finding the Fourth Proportional to 248,891.20, 373,303.20 and 99,241.60

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Solution

The fourth proportional to 248,891.20, 373,303.20 and 99,241.60 is: 148,849.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,891.20 : 373,303.20 = 99,241.60 : x
  2. Step 2: Convert to fraction form
    248,891.20/373,303.20 = 99,241.60/x
  3. Step 3: Cross multiply
    248,891.20x = 373,303.20 × 99,241.60
  4. Step 4: Simplify right side
    248,891.20x = 37,047,206,853.12
  5. Step 5: Solve for x
    x = 37,047,206,853.12/248,891.20
  6. Step 6: Final answer
    x = 148,849.00

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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.