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Finding the Fourth Proportional to 111,573.56, 167,360.40 and 70,049.72

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Solution

The fourth proportional to 111,573.56, 167,360.40 and 70,049.72 is: 105,074.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,573.56 : 167,360.40 = 70,049.72 : x
  2. Step 2: Convert to fraction form
    111,573.56/167,360.40 = 70,049.72/x
  3. Step 3: Cross multiply
    111,573.56x = 167,360.40 × 70,049.72
  4. Step 4: Simplify right side
    111,573.56x = 11,723,549,159.09
  5. Step 5: Solve for x
    x = 11,723,549,159.09/111,573.56
  6. Step 6: Final answer
    x = 105,074.62

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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.