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Finding the Fourth Proportional to 79,636.53, 119,314.45 and 42,113.68

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Solution

The fourth proportional to 79,636.53, 119,314.45 and 42,113.68 is: 63,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,636.53 : 119,314.45 = 42,113.68 : x
  2. Step 2: Convert to fraction form
    79,636.53/119,314.45 = 42,113.68/x
  3. Step 3: Cross multiply
    79,636.53x = 119,314.45 × 42,113.68
  4. Step 4: Simplify right side
    79,636.53x = 5,024,770,566.68
  5. Step 5: Solve for x
    x = 5,024,770,566.68/79,636.53
  6. Step 6: Final answer
    x = 63,096.30

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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.