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Finding the Fourth Proportional to 311,720.40, 466,889.40 and 124,635.60

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Solution

The fourth proportional to 311,720.40, 466,889.40 and 124,635.60 is: 186,677.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,720.40 : 466,889.40 = 124,635.60 : x
  2. Step 2: Convert to fraction form
    311,720.40/466,889.40 = 124,635.60/x
  3. Step 3: Cross multiply
    311,720.40x = 466,889.40 × 124,635.60
  4. Step 4: Simplify right side
    311,720.40x = 58,191,040,502.64
  5. Step 5: Solve for x
    x = 58,191,040,502.64/311,720.40
  6. Step 6: Final answer
    x = 186,677.04

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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.