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Finding the Fourth Proportional to 248,069.40, 372,104.10 and 189,020.40

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Solution

The fourth proportional to 248,069.40, 372,104.10 and 189,020.40 is: 283,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,069.40 : 372,104.10 = 189,020.40 : x
  2. Step 2: Convert to fraction form
    248,069.40/372,104.10 = 189,020.40/x
  3. Step 3: Cross multiply
    248,069.40x = 372,104.10 × 189,020.40
  4. Step 4: Simplify right side
    248,069.40x = 70,335,265,823.64
  5. Step 5: Solve for x
    x = 70,335,265,823.64/248,069.40
  6. Step 6: Final answer
    x = 283,530.60

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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.