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Finding the Fourth Proportional to 73,815.80, 110,723.70 and 69,927.80

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Solution

The fourth proportional to 73,815.80, 110,723.70 and 69,927.80 is: 104,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,815.80 : 110,723.70 = 69,927.80 : x
  2. Step 2: Convert to fraction form
    73,815.80/110,723.70 = 69,927.80/x
  3. Step 3: Cross multiply
    73,815.80x = 110,723.70 × 69,927.80
  4. Step 4: Simplify right side
    73,815.80x = 7,742,664,748.86
  5. Step 5: Solve for x
    x = 7,742,664,748.86/73,815.80
  6. Step 6: Final answer
    x = 104,891.70

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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.