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Finding the Fourth Proportional to 87,008.80, 130,527.60 and 37,112.80

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Solution

The fourth proportional to 87,008.80, 130,527.60 and 37,112.80 is: 55,675.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,008.80 : 130,527.60 = 37,112.80 : x
  2. Step 2: Convert to fraction form
    87,008.80/130,527.60 = 37,112.80/x
  3. Step 3: Cross multiply
    87,008.80x = 130,527.60 × 37,112.80
  4. Step 4: Simplify right side
    87,008.80x = 4,844,244,713.28
  5. Step 5: Solve for x
    x = 4,844,244,713.28/87,008.80
  6. Step 6: Final answer
    x = 55,675.34

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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.