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Finding the Fourth Proportional to 110,993.19, 153,172.27 and 63,245.51

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Solution

The fourth proportional to 110,993.19, 153,172.27 and 63,245.51 is: 87,279.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,993.19 : 153,172.27 = 63,245.51 : x
  2. Step 2: Convert to fraction form
    110,993.19/153,172.27 = 63,245.51/x
  3. Step 3: Cross multiply
    110,993.19x = 153,172.27 × 63,245.51
  4. Step 4: Simplify right side
    110,993.19x = 9,687,457,865.84
  5. Step 5: Solve for x
    x = 9,687,457,865.84/110,993.19
  6. Step 6: Final answer
    x = 87,279.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.