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Finding the Fourth Proportional to 79,568.64, 119,826.72 and 69,304.32

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Solution

The fourth proportional to 79,568.64, 119,826.72 and 69,304.32 is: 104,369.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,568.64 : 119,826.72 = 69,304.32 : x
  2. Step 2: Convert to fraction form
    79,568.64/119,826.72 = 69,304.32/x
  3. Step 3: Cross multiply
    79,568.64x = 119,826.72 × 69,304.32
  4. Step 4: Simplify right side
    79,568.64x = 8,304,509,347.43
  5. Step 5: Solve for x
    x = 8,304,509,347.43/79,568.64
  6. Step 6: Final answer
    x = 104,369.13

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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.