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Finding the Fourth Proportional to 247,209.20, 370,959.60 and 163,212.20

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Solution

The fourth proportional to 247,209.20, 370,959.60 and 163,212.20 is: 244,914.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,209.20 : 370,959.60 = 163,212.20 : x
  2. Step 2: Convert to fraction form
    247,209.20/370,959.60 = 163,212.20/x
  3. Step 3: Cross multiply
    247,209.20x = 370,959.60 × 163,212.20
  4. Step 4: Simplify right side
    247,209.20x = 60,545,132,427.12
  5. Step 5: Solve for x
    x = 60,545,132,427.12/247,209.20
  6. Step 6: Final answer
    x = 244,914.56

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1.5x scale

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.