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Finding the Fourth Proportional to 190,297.20, 285,445.80 and 116,569.20

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Solution

The fourth proportional to 190,297.20, 285,445.80 and 116,569.20 is: 174,853.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,297.20 : 285,445.80 = 116,569.20 : x
  2. Step 2: Convert to fraction form
    190,297.20/285,445.80 = 116,569.20/x
  3. Step 3: Cross multiply
    190,297.20x = 285,445.80 × 116,569.20
  4. Step 4: Simplify right side
    190,297.20x = 33,274,188,549.36
  5. Step 5: Solve for x
    x = 33,274,188,549.36/190,297.20
  6. Step 6: Final answer
    x = 174,853.80

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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.