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Finding the Fourth Proportional to 219,969.06, 329,949.54 and 70,208.16

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Solution

The fourth proportional to 219,969.06, 329,949.54 and 70,208.16 is: 105,310.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,969.06 : 329,949.54 = 70,208.16 : x
  2. Step 2: Convert to fraction form
    219,969.06/329,949.54 = 70,208.16/x
  3. Step 3: Cross multiply
    219,969.06x = 329,949.54 × 70,208.16
  4. Step 4: Simplify right side
    219,969.06x = 23,165,150,096.25
  5. Step 5: Solve for x
    x = 23,165,150,096.25/219,969.06
  6. Step 6: Final answer
    x = 105,310.95

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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.