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Finding the Fourth Proportional to 183,643.60, 275,004.60 and 120,974.80

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Solution

The fourth proportional to 183,643.60, 275,004.60 and 120,974.80 is: 181,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,643.60 : 275,004.60 = 120,974.80 : x
  2. Step 2: Convert to fraction form
    183,643.60/275,004.60 = 120,974.80/x
  3. Step 3: Cross multiply
    183,643.60x = 275,004.60 × 120,974.80
  4. Step 4: Simplify right side
    183,643.60x = 33,268,626,484.08
  5. Step 5: Solve for x
    x = 33,268,626,484.08/183,643.60
  6. Step 6: Final answer
    x = 181,158.65

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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.