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Finding the Fourth Proportional to 183,912.12, 253,803.17 and 103,334.84

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Solution

The fourth proportional to 183,912.12, 253,803.17 and 103,334.84 is: 142,604.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,912.12 : 253,803.17 = 103,334.84 : x
  2. Step 2: Convert to fraction form
    183,912.12/253,803.17 = 103,334.84/x
  3. Step 3: Cross multiply
    183,912.12x = 253,803.17 × 103,334.84
  4. Step 4: Simplify right side
    183,912.12x = 26,226,709,904.53
  5. Step 5: Solve for x
    x = 26,226,709,904.53/183,912.12
  6. Step 6: Final answer
    x = 142,604.58

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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.