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Finding the Fourth Proportional to 220,048.80, 329,911.32 and 70,202.84

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Solution

The fourth proportional to 220,048.80, 329,911.32 and 70,202.84 is: 105,252.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,048.80 : 329,911.32 = 70,202.84 : x
  2. Step 2: Convert to fraction form
    220,048.80/329,911.32 = 70,202.84/x
  3. Step 3: Cross multiply
    220,048.80x = 329,911.32 × 70,202.84
  4. Step 4: Simplify right side
    220,048.80x = 23,160,711,612.15
  5. Step 5: Solve for x
    x = 23,160,711,612.15/220,048.80
  6. Step 6: Final answer
    x = 105,252.61

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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.