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Finding the Fourth Proportional to 79,541.64, 119,785.95 and 69,277.32

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Solution

The fourth proportional to 79,541.64, 119,785.95 and 69,277.32 is: 104,328.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,541.64 : 119,785.95 = 69,277.32 : x
  2. Step 2: Convert to fraction form
    79,541.64/119,785.95 = 69,277.32/x
  3. Step 3: Cross multiply
    79,541.64x = 119,785.95 × 69,277.32
  4. Step 4: Simplify right side
    79,541.64x = 8,298,449,589.65
  5. Step 5: Solve for x
    x = 8,298,449,589.65/79,541.64
  6. Step 6: Final answer
    x = 104,328.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.