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Finding the Fourth Proportional to 241,763.20, 362,644.80 and 84,007.60

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Solution

The fourth proportional to 241,763.20, 362,644.80 and 84,007.60 is: 126,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,763.20 : 362,644.80 = 84,007.60 : x
  2. Step 2: Convert to fraction form
    241,763.20/362,644.80 = 84,007.60/x
  3. Step 3: Cross multiply
    241,763.20x = 362,644.80 × 84,007.60
  4. Step 4: Simplify right side
    241,763.20x = 30,464,919,300.48
  5. Step 5: Solve for x
    x = 30,464,919,300.48/241,763.20
  6. Step 6: Final answer
    x = 126,011.40

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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.