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Finding the Fourth Proportional to 183,409.20, 275,113.80 and 103,693.05

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Solution

The fourth proportional to 183,409.20, 275,113.80 and 103,693.05 is: 155,539.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,409.20 : 275,113.80 = 103,693.05 : x
  2. Step 2: Convert to fraction form
    183,409.20/275,113.80 = 103,693.05/x
  3. Step 3: Cross multiply
    183,409.20x = 275,113.80 × 103,693.05
  4. Step 4: Simplify right side
    183,409.20x = 28,527,389,019.09
  5. Step 5: Solve for x
    x = 28,527,389,019.09/183,409.20
  6. Step 6: Final answer
    x = 155,539.58

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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.