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Finding the Fourth Proportional to 79,529.52, 119,268.76 and 35,155.28

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Solution

The fourth proportional to 79,529.52, 119,268.76 and 35,155.28 is: 52,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,529.52 : 119,268.76 = 35,155.28 : x
  2. Step 2: Convert to fraction form
    79,529.52/119,268.76 = 35,155.28/x
  3. Step 3: Cross multiply
    79,529.52x = 119,268.76 × 35,155.28
  4. Step 4: Simplify right side
    79,529.52x = 4,192,926,653.05
  5. Step 5: Solve for x
    x = 4,192,926,653.05/79,529.52
  6. Step 6: Final answer
    x = 52,721.64

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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.