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Finding the Fourth Proportional to 111,846.99, 154,353.11 and 64,109.55

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Solution

The fourth proportional to 111,846.99, 154,353.11 and 64,109.55 is: 88,473.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,846.99 : 154,353.11 = 64,109.55 : x
  2. Step 2: Convert to fraction form
    111,846.99/154,353.11 = 64,109.55/x
  3. Step 3: Cross multiply
    111,846.99x = 154,353.11 × 64,109.55
  4. Step 4: Simplify right side
    111,846.99x = 9,895,508,102.65
  5. Step 5: Solve for x
    x = 9,895,508,102.65/111,846.99
  6. Step 6: Final answer
    x = 88,473.62

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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.