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Finding the Fourth Proportional to 71,960.58, 108,051.59 and 64,136.59

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Solution

The fourth proportional to 71,960.58, 108,051.59 and 64,136.59 is: 96,303.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,960.58 : 108,051.59 = 64,136.59 : x
  2. Step 2: Convert to fraction form
    71,960.58/108,051.59 = 64,136.59/x
  3. Step 3: Cross multiply
    71,960.58x = 108,051.59 × 64,136.59
  4. Step 4: Simplify right side
    71,960.58x = 6,930,060,526.68
  5. Step 5: Solve for x
    x = 6,930,060,526.68/71,960.58
  6. Step 6: Final answer
    x = 96,303.57

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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.