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Finding the Fourth Proportional to 237,040.80, 355,431.60 and 96,640.80

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Solution

The fourth proportional to 237,040.80, 355,431.60 and 96,640.80 is: 144,908.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,040.80 : 355,431.60 = 96,640.80 : x
  2. Step 2: Convert to fraction form
    237,040.80/355,431.60 = 96,640.80/x
  3. Step 3: Cross multiply
    237,040.80x = 355,431.60 × 96,640.80
  4. Step 4: Simplify right side
    237,040.80x = 34,349,194,169.28
  5. Step 5: Solve for x
    x = 34,349,194,169.28/237,040.80
  6. Step 6: Final answer
    x = 144,908.36

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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.