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Finding the Fourth Proportional to 237,371.66, 355,811.45 and 148,420.90

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Solution

The fourth proportional to 237,371.66, 355,811.45 and 148,420.90 is: 222,477.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,371.66 : 355,811.45 = 148,420.90 : x
  2. Step 2: Convert to fraction form
    237,371.66/355,811.45 = 148,420.90/x
  3. Step 3: Cross multiply
    237,371.66x = 355,811.45 × 148,420.90
  4. Step 4: Simplify right side
    237,371.66x = 52,809,854,007.67
  5. Step 5: Solve for x
    x = 52,809,854,007.67/237,371.66
  6. Step 6: Final answer
    x = 222,477.51

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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.