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Finding the Fourth Proportional to 143,783.56, 215,675.34 and 43,944.04

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Solution

The fourth proportional to 143,783.56, 215,675.34 and 43,944.04 is: 65,916.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,783.56 : 215,675.34 = 43,944.04 : x
  2. Step 2: Convert to fraction form
    143,783.56/215,675.34 = 43,944.04/x
  3. Step 3: Cross multiply
    143,783.56x = 215,675.34 × 43,944.04
  4. Step 4: Simplify right side
    143,783.56x = 9,477,645,767.97
  5. Step 5: Solve for x
    x = 9,477,645,767.97/143,783.56
  6. Step 6: Final answer
    x = 65,916.06

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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.