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Finding the Fourth Proportional to 219,967.20, 329,918.40 and 62,211.60

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Solution

The fourth proportional to 219,967.20, 329,918.40 and 62,211.60 is: 93,308.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,967.20 : 329,918.40 = 62,211.60 : x
  2. Step 2: Convert to fraction form
    219,967.20/329,918.40 = 62,211.60/x
  3. Step 3: Cross multiply
    219,967.20x = 329,918.40 × 62,211.60
  4. Step 4: Simplify right side
    219,967.20x = 20,524,751,533.44
  5. Step 5: Solve for x
    x = 20,524,751,533.44/219,967.20
  6. Step 6: Final answer
    x = 93,308.24

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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.