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Finding the Fourth Proportional to 219,801.15, 329,698.15 and 70,039.42

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Solution

The fourth proportional to 219,801.15, 329,698.15 and 70,039.42 is: 105,057.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,801.15 : 329,698.15 = 70,039.42 : x
  2. Step 2: Convert to fraction form
    219,801.15/329,698.15 = 70,039.42/x
  3. Step 3: Cross multiply
    219,801.15x = 329,698.15 × 70,039.42
  4. Step 4: Simplify right side
    219,801.15x = 23,091,866,201.73
  5. Step 5: Solve for x
    x = 23,091,866,201.73/219,801.15
  6. Step 6: Final answer
    x = 105,057.99

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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.