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Finding the Fourth Proportional to 79,977.28, 119,813.28 and 44,810.56

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Solution

The fourth proportional to 79,977.28, 119,813.28 and 44,810.56 is: 67,130.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,977.28 : 119,813.28 = 44,810.56 : x
  2. Step 2: Convert to fraction form
    79,977.28/119,813.28 = 44,810.56/x
  3. Step 3: Cross multiply
    79,977.28x = 119,813.28 × 44,810.56
  4. Step 4: Simplify right side
    79,977.28x = 5,368,900,172.24
  5. Step 5: Solve for x
    x = 5,368,900,172.24/79,977.28
  6. Step 6: Final answer
    x = 67,130.32

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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.