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Finding the Fourth Proportional to 192,128.64, 265,136.50 and 111,575.97

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Solution

The fourth proportional to 192,128.64, 265,136.50 and 111,575.97 is: 153,974.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,128.64 : 265,136.50 = 111,575.97 : x
  2. Step 2: Convert to fraction form
    192,128.64/265,136.50 = 111,575.97/x
  3. Step 3: Cross multiply
    192,128.64x = 265,136.50 × 111,575.97
  4. Step 4: Simplify right side
    192,128.64x = 29,582,862,169.91
  5. Step 5: Solve for x
    x = 29,582,862,169.91/192,128.64
  6. Step 6: Final answer
    x = 153,974.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.