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Finding the Fourth Proportional to 113,790.64, 170,707.96 and 43,664.48

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Solution

The fourth proportional to 113,790.64, 170,707.96 and 43,664.48 is: 65,505.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,790.64 : 170,707.96 = 43,664.48 : x
  2. Step 2: Convert to fraction form
    113,790.64/170,707.96 = 43,664.48/x
  3. Step 3: Cross multiply
    113,790.64x = 170,707.96 × 43,664.48
  4. Step 4: Simplify right side
    113,790.64x = 7,453,874,305.26
  5. Step 5: Solve for x
    x = 7,453,874,305.26/113,790.64
  6. Step 6: Final answer
    x = 65,505.16

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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.