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Finding the Fourth Proportional to 190,895.33, 286,012.25 and 115,858.25

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Solution

The fourth proportional to 190,895.33, 286,012.25 and 115,858.25 is: 173,586.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,895.33 : 286,012.25 = 115,858.25 : x
  2. Step 2: Convert to fraction form
    190,895.33/286,012.25 = 115,858.25/x
  3. Step 3: Cross multiply
    190,895.33x = 286,012.25 × 115,858.25
  4. Step 4: Simplify right side
    190,895.33x = 33,136,878,763.56
  5. Step 5: Solve for x
    x = 33,136,878,763.56/190,895.33
  6. Step 6: Final answer
    x = 173,586.64

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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.