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Finding the Fourth Proportional to 76,216.50, 105,182.01 and 44,380.26

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Solution

The fourth proportional to 76,216.50, 105,182.01 and 44,380.26 is: 61,246.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,216.50 : 105,182.01 = 44,380.26 : x
  2. Step 2: Convert to fraction form
    76,216.50/105,182.01 = 44,380.26/x
  3. Step 3: Cross multiply
    76,216.50x = 105,182.01 × 44,380.26
  4. Step 4: Simplify right side
    76,216.50x = 4,668,004,951.12
  5. Step 5: Solve for x
    x = 4,668,004,951.12/76,216.50
  6. Step 6: Final answer
    x = 61,246.65

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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.