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Finding the Fourth Proportional to 183,616.56, 275,541.36 and 78,436.32

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Solution

The fourth proportional to 183,616.56, 275,541.36 and 78,436.32 is: 117,704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,616.56 : 275,541.36 = 78,436.32 : x
  2. Step 2: Convert to fraction form
    183,616.56/275,541.36 = 78,436.32/x
  3. Step 3: Cross multiply
    183,616.56x = 275,541.36 × 78,436.32
  4. Step 4: Simplify right side
    183,616.56x = 21,612,450,286.20
  5. Step 5: Solve for x
    x = 21,612,450,286.20/183,616.56
  6. Step 6: Final answer
    x = 117,704.25

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1.5x scale

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.