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Finding the Fourth Proportional to 218,102.10, 305,550.30 and 218,102.10

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Solution

The fourth proportional to 218,102.10, 305,550.30 and 218,102.10 is: 305,550.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,102.10 : 305,550.30 = 218,102.10 : x
  2. Step 2: Convert to fraction form
    218,102.10/305,550.30 = 218,102.10/x
  3. Step 3: Cross multiply
    218,102.10x = 305,550.30 × 218,102.10
  4. Step 4: Simplify right side
    218,102.10x = 66,641,162,085.63
  5. Step 5: Solve for x
    x = 66,641,162,085.63/218,102.10
  6. Step 6: Final answer
    x = 305,550.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.