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Finding the Fourth Proportional to 183,812.60, 275,427.30 and 121,410.20

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Solution

The fourth proportional to 183,812.60, 275,427.30 and 121,410.20 is: 181,922.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,812.60 : 275,427.30 = 121,410.20 : x
  2. Step 2: Convert to fraction form
    183,812.60/275,427.30 = 121,410.20/x
  3. Step 3: Cross multiply
    183,812.60x = 275,427.30 × 121,410.20
  4. Step 4: Simplify right side
    183,812.60x = 33,439,683,578.46
  5. Step 5: Solve for x
    x = 33,439,683,578.46/183,812.60
  6. Step 6: Final answer
    x = 181,922.70

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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.