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Finding the Fourth Proportional to 76,589.55, 114,720.30 and 63,467.55

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Solution

The fourth proportional to 76,589.55, 114,720.30 and 63,467.55 is: 95,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,589.55 : 114,720.30 = 63,467.55 : x
  2. Step 2: Convert to fraction form
    76,589.55/114,720.30 = 63,467.55/x
  3. Step 3: Cross multiply
    76,589.55x = 114,720.30 × 63,467.55
  4. Step 4: Simplify right side
    76,589.55x = 7,281,016,376.27
  5. Step 5: Solve for x
    x = 7,281,016,376.27/76,589.55
  6. Step 6: Final answer
    x = 95,065.40

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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.