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Finding the Fourth Proportional to 200,316.40, 300,085.80 and 111,410.80

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Solution

The fourth proportional to 200,316.40, 300,085.80 and 111,410.80 is: 166,899.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,316.40 : 300,085.80 = 111,410.80 : x
  2. Step 2: Convert to fraction form
    200,316.40/300,085.80 = 111,410.80/x
  3. Step 3: Cross multiply
    200,316.40x = 300,085.80 × 111,410.80
  4. Step 4: Simplify right side
    200,316.40x = 33,432,799,046.64
  5. Step 5: Solve for x
    x = 33,432,799,046.64/200,316.40
  6. Step 6: Final answer
    x = 166,899.96

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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.