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Finding the Fourth Proportional to 183,966.96, 275,719.60 and 78,662.32

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Solution

The fourth proportional to 183,966.96, 275,719.60 and 78,662.32 is: 117,894.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,966.96 : 275,719.60 = 78,662.32 : x
  2. Step 2: Convert to fraction form
    183,966.96/275,719.60 = 78,662.32/x
  3. Step 3: Cross multiply
    183,966.96x = 275,719.60 × 78,662.32
  4. Step 4: Simplify right side
    183,966.96x = 21,688,743,405.47
  5. Step 5: Solve for x
    x = 21,688,743,405.47/183,966.96
  6. Step 6: Final answer
    x = 117,894.78

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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.