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Finding the Fourth Proportional to 190,033.44, 285,090.88 and 70,090.80

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Solution

The fourth proportional to 190,033.44, 285,090.88 and 70,090.80 is: 105,151.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,033.44 : 285,090.88 = 70,090.80 : x
  2. Step 2: Convert to fraction form
    190,033.44/285,090.88 = 70,090.80/x
  3. Step 3: Cross multiply
    190,033.44x = 285,090.88 × 70,090.80
  4. Step 4: Simplify right side
    190,033.44x = 19,982,247,851.90
  5. Step 5: Solve for x
    x = 19,982,247,851.90/190,033.44
  6. Step 6: Final answer
    x = 105,151.22

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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.