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Finding the Fourth Proportional to 100,628.70, 150,921.45 and 44,468.70

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Solution

The fourth proportional to 100,628.70, 150,921.45 and 44,468.70 is: 66,693.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,628.70 : 150,921.45 = 44,468.70 : x
  2. Step 2: Convert to fraction form
    100,628.70/150,921.45 = 44,468.70/x
  3. Step 3: Cross multiply
    100,628.70x = 150,921.45 × 44,468.70
  4. Step 4: Simplify right side
    100,628.70x = 6,711,280,683.62
  5. Step 5: Solve for x
    x = 6,711,280,683.62/100,628.70
  6. Step 6: Final answer
    x = 66,693.50

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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.