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Finding the Fourth Proportional to 183,889.40, 253,773.86 and 103,315.28

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Solution

The fourth proportional to 183,889.40, 253,773.86 and 103,315.28 is: 142,578.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,889.40 : 253,773.86 = 103,315.28 : x
  2. Step 2: Convert to fraction form
    183,889.40/253,773.86 = 103,315.28/x
  3. Step 3: Cross multiply
    183,889.40x = 253,773.86 × 103,315.28
  4. Step 4: Simplify right side
    183,889.40x = 26,218,715,617.14
  5. Step 5: Solve for x
    x = 26,218,715,617.14/183,889.40
  6. Step 6: Final answer
    x = 142,578.73

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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.