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Finding the Fourth Proportional to 85,322.96, 117,748.92 and 47,604.56

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Solution

The fourth proportional to 85,322.96, 117,748.92 and 47,604.56 is: 65,696.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,322.96 : 117,748.92 = 47,604.56 : x
  2. Step 2: Convert to fraction form
    85,322.96/117,748.92 = 47,604.56/x
  3. Step 3: Cross multiply
    85,322.96x = 117,748.92 × 47,604.56
  4. Step 4: Simplify right side
    85,322.96x = 5,605,385,527.08
  5. Step 5: Solve for x
    x = 5,605,385,527.08/85,322.96
  6. Step 6: Final answer
    x = 65,696.10

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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.