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Finding the Fourth Proportional to 183,617.56, 275,542.86 and 78,437.32

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Solution

The fourth proportional to 183,617.56, 275,542.86 and 78,437.32 is: 117,705.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,617.56 : 275,542.86 = 78,437.32 : x
  2. Step 2: Convert to fraction form
    183,617.56/275,542.86 = 78,437.32/x
  3. Step 3: Cross multiply
    183,617.56x = 275,542.86 × 78,437.32
  4. Step 4: Simplify right side
    183,617.56x = 21,612,843,483.54
  5. Step 5: Solve for x
    x = 21,612,843,483.54/183,617.56
  6. Step 6: Final answer
    x = 117,705.75

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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.