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Finding the Fourth Proportional to 98,944.88, 148,417.31 and 43,540.88

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Solution

The fourth proportional to 98,944.88, 148,417.31 and 43,540.88 is: 65,311.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,944.88 : 148,417.31 = 43,540.88 : x
  2. Step 2: Convert to fraction form
    98,944.88/148,417.31 = 43,540.88/x
  3. Step 3: Cross multiply
    98,944.88x = 148,417.31 × 43,540.88
  4. Step 4: Simplify right side
    98,944.88x = 6,462,219,651.40
  5. Step 5: Solve for x
    x = 6,462,219,651.40/98,944.88
  6. Step 6: Final answer
    x = 65,311.31

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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.