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Finding the Fourth Proportional to 364,620.40, 546,930.60 and 98,380.91

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Solution

The fourth proportional to 364,620.40, 546,930.60 and 98,380.91 is: 147,571.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,620.40 : 546,930.60 = 98,380.91 : x
  2. Step 2: Convert to fraction form
    364,620.40/546,930.60 = 98,380.91/x
  3. Step 3: Cross multiply
    364,620.40x = 546,930.60 × 98,380.91
  4. Step 4: Simplify right side
    364,620.40x = 53,807,529,642.94
  5. Step 5: Solve for x
    x = 53,807,529,642.94/364,620.40
  6. Step 6: Final answer
    x = 147,571.37

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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.