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Finding the Fourth Proportional to 237,116.84, 327,216.63 and 129,686.54

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Solution

The fourth proportional to 237,116.84, 327,216.63 and 129,686.54 is: 178,964.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,116.84 : 327,216.63 = 129,686.54 : x
  2. Step 2: Convert to fraction form
    237,116.84/327,216.63 = 129,686.54/x
  3. Step 3: Cross multiply
    237,116.84x = 327,216.63 × 129,686.54
  4. Step 4: Simplify right side
    237,116.84x = 42,435,592,575.16
  5. Step 5: Solve for x
    x = 42,435,592,575.16/237,116.84
  6. Step 6: Final answer
    x = 178,964.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.