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Finding the Fourth Proportional to 241,387.20, 362,080.80 and 147,945.60

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Solution

The fourth proportional to 241,387.20, 362,080.80 and 147,945.60 is: 221,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,387.20 : 362,080.80 = 147,945.60 : x
  2. Step 2: Convert to fraction form
    241,387.20/362,080.80 = 147,945.60/x
  3. Step 3: Cross multiply
    241,387.20x = 362,080.80 × 147,945.60
  4. Step 4: Simplify right side
    241,387.20x = 53,568,261,204.48
  5. Step 5: Solve for x
    x = 53,568,261,204.48/241,387.20
  6. Step 6: Final answer
    x = 221,918.40

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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.