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Finding the Fourth Proportional to 183,891.45, 253,770.42 and 103,318.93

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Solution

The fourth proportional to 183,891.45, 253,770.42 and 103,318.93 is: 142,580.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,891.45 : 253,770.42 = 103,318.93 : x
  2. Step 2: Convert to fraction form
    183,891.45/253,770.42 = 103,318.93/x
  3. Step 3: Cross multiply
    183,891.45x = 253,770.42 × 103,318.93
  4. Step 4: Simplify right side
    183,891.45x = 26,219,288,013.07
  5. Step 5: Solve for x
    x = 26,219,288,013.07/183,891.45
  6. Step 6: Final answer
    x = 142,580.25

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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.