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Finding the Fourth Proportional to 237,371.54, 355,811.26 and 148,420.78

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Solution

The fourth proportional to 237,371.54, 355,811.26 and 148,420.78 is: 222,477.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,371.54 : 355,811.26 = 148,420.78 : x
  2. Step 2: Convert to fraction form
    237,371.54/355,811.26 = 148,420.78/x
  3. Step 3: Cross multiply
    237,371.54x = 355,811.26 × 148,420.78
  4. Step 4: Simplify right side
    237,371.54x = 52,809,784,741.98
  5. Step 5: Solve for x
    x = 52,809,784,741.98/237,371.54
  6. Step 6: Final answer
    x = 222,477.32

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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.