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Finding the Fourth Proportional to 85,322.56, 117,744.96 and 47,594.56

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Solution

The fourth proportional to 85,322.56, 117,744.96 and 47,594.56 is: 65,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,322.56 : 117,744.96 = 47,594.56 : x
  2. Step 2: Convert to fraction form
    85,322.56/117,744.96 = 47,594.56/x
  3. Step 3: Cross multiply
    85,322.56x = 117,744.96 × 47,594.56
  4. Step 4: Simplify right side
    85,322.56x = 5,604,019,563.42
  5. Step 5: Solve for x
    x = 5,604,019,563.42/85,322.56
  6. Step 6: Final answer
    x = 65,680.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.