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Finding the Fourth Proportional to 237,395.68, 355,978.64 and 87,706.48

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Solution

The fourth proportional to 237,395.68, 355,978.64 and 87,706.48 is: 131,517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,395.68 : 355,978.64 = 87,706.48 : x
  2. Step 2: Convert to fraction form
    237,395.68/355,978.64 = 87,706.48/x
  3. Step 3: Cross multiply
    237,395.68x = 355,978.64 × 87,706.48
  4. Step 4: Simplify right side
    237,395.68x = 31,221,633,469.59
  5. Step 5: Solve for x
    x = 31,221,633,469.59/237,395.68
  6. Step 6: Final answer
    x = 131,517.28

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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.