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Finding the Fourth Proportional to 237,321.69, 355,973.21 and 87,497.20

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Solution

The fourth proportional to 237,321.69, 355,973.21 and 87,497.20 is: 131,242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,321.69 : 355,973.21 = 87,497.20 : x
  2. Step 2: Convert to fraction form
    237,321.69/355,973.21 = 87,497.20/x
  3. Step 3: Cross multiply
    237,321.69x = 355,973.21 × 87,497.20
  4. Step 4: Simplify right side
    237,321.69x = 31,146,659,150.01
  5. Step 5: Solve for x
    x = 31,146,659,150.01/237,321.69
  6. Step 6: Final answer
    x = 131,242.36

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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.