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Finding the Fourth Proportional to 113,790.97, 170,735.66 and 43,653.88

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Solution

The fourth proportional to 113,790.97, 170,735.66 and 43,653.88 is: 65,499.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,790.97 : 170,735.66 = 43,653.88 : x
  2. Step 2: Convert to fraction form
    113,790.97/170,735.66 = 43,653.88/x
  3. Step 3: Cross multiply
    113,790.97x = 170,735.66 × 43,653.88
  4. Step 4: Simplify right side
    113,790.97x = 7,453,272,941.41
  5. Step 5: Solve for x
    x = 7,453,272,941.41/113,790.97
  6. Step 6: Final answer
    x = 65,499.69

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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.