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Finding the Fourth Proportional to 111,414.44, 153,760.08 and 63,666.80

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Solution

The fourth proportional to 111,414.44, 153,760.08 and 63,666.80 is: 87,864.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,414.44 : 153,760.08 = 63,666.80 : x
  2. Step 2: Convert to fraction form
    111,414.44/153,760.08 = 63,666.80/x
  3. Step 3: Cross multiply
    111,414.44x = 153,760.08 × 63,666.80
  4. Step 4: Simplify right side
    111,414.44x = 9,789,412,261.34
  5. Step 5: Solve for x
    x = 9,789,412,261.34/111,414.44
  6. Step 6: Final answer
    x = 87,864.84

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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.