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Finding the Fourth Proportional to 107,129.30, 160,670.89 and 43,887.41

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Solution

The fourth proportional to 107,129.30, 160,670.89 and 43,887.41 is: 65,821.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,129.30 : 160,670.89 = 43,887.41 : x
  2. Step 2: Convert to fraction form
    107,129.30/160,670.89 = 43,887.41/x
  3. Step 3: Cross multiply
    107,129.30x = 160,670.89 × 43,887.41
  4. Step 4: Simplify right side
    107,129.30x = 7,051,429,516.45
  5. Step 5: Solve for x
    x = 7,051,429,516.45/107,129.30
  6. Step 6: Final answer
    x = 65,821.67

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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.