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Finding the Fourth Proportional to 114,007.20, 170,751.60 and 72,016.80

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Solution

The fourth proportional to 114,007.20, 170,751.60 and 72,016.80 is: 107,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,007.20 : 170,751.60 = 72,016.80 : x
  2. Step 2: Convert to fraction form
    114,007.20/170,751.60 = 72,016.80/x
  3. Step 3: Cross multiply
    114,007.20x = 170,751.60 × 72,016.80
  4. Step 4: Simplify right side
    114,007.20x = 12,296,983,826.88
  5. Step 5: Solve for x
    x = 12,296,983,826.88/114,007.20
  6. Step 6: Final answer
    x = 107,861.47

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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.