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Finding the Fourth Proportional to 79,596.64, 119,869 and 69,332.32

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Solution

The fourth proportional to 79,596.64, 119,869 and 69,332.32 is: 104,411.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,596.64 : 119,869 = 69,332.32 : x
  2. Step 2: Convert to fraction form
    79,596.64/119,869 = 69,332.32/x
  3. Step 3: Cross multiply
    79,596.64x = 119,869 × 69,332.32
  4. Step 4: Simplify right side
    79,596.64x = 8,310,795,866.08
  5. Step 5: Solve for x
    x = 8,310,795,866.08/79,596.64
  6. Step 6: Final answer
    x = 104,411.39

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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.