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Finding the Fourth Proportional to 146,435.70, 219,653.54 and 76,451.70

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Solution

The fourth proportional to 146,435.70, 219,653.54 and 76,451.70 is: 114,677.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,435.70 : 219,653.54 = 76,451.70 : x
  2. Step 2: Convert to fraction form
    146,435.70/219,653.54 = 76,451.70/x
  3. Step 3: Cross multiply
    146,435.70x = 219,653.54 × 76,451.70
  4. Step 4: Simplify right side
    146,435.70x = 16,792,886,544.02
  5. Step 5: Solve for x
    x = 16,792,886,544.02/146,435.70
  6. Step 6: Final answer
    x = 114,677.54

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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.