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Finding the Fourth Proportional to 116,704.56, 174,642.12 and 85,462.32

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Solution

The fourth proportional to 116,704.56, 174,642.12 and 85,462.32 is: 127,889.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,704.56 : 174,642.12 = 85,462.32 : x
  2. Step 2: Convert to fraction form
    116,704.56/174,642.12 = 85,462.32/x
  3. Step 3: Cross multiply
    116,704.56x = 174,642.12 × 85,462.32
  4. Step 4: Simplify right side
    116,704.56x = 14,925,320,744.92
  5. Step 5: Solve for x
    x = 14,925,320,744.92/116,704.56
  6. Step 6: Final answer
    x = 127,889.78

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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.