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Finding the Fourth Proportional to 76,073.80, 114,130.14 and 29,314.12

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Solution

The fourth proportional to 76,073.80, 114,130.14 and 29,314.12 is: 43,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,073.80 : 114,130.14 = 29,314.12 : x
  2. Step 2: Convert to fraction form
    76,073.80/114,130.14 = 29,314.12/x
  3. Step 3: Cross multiply
    76,073.80x = 114,130.14 × 29,314.12
  4. Step 4: Simplify right side
    76,073.80x = 3,345,624,619.58
  5. Step 5: Solve for x
    x = 3,345,624,619.58/76,073.80
  6. Step 6: Final answer
    x = 43,978.67

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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.