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Finding the Fourth Proportional to 117,694.28, 176,619.12 and 55,369.64

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Solution

The fourth proportional to 117,694.28, 176,619.12 and 55,369.64 is: 83,091.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,694.28 : 176,619.12 = 55,369.64 : x
  2. Step 2: Convert to fraction form
    117,694.28/176,619.12 = 55,369.64/x
  3. Step 3: Cross multiply
    117,694.28x = 176,619.12 × 55,369.64
  4. Step 4: Simplify right side
    117,694.28x = 9,779,337,091.52
  5. Step 5: Solve for x
    x = 9,779,337,091.52/117,694.28
  6. Step 6: Final answer
    x = 83,091.01

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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.