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Finding the Fourth Proportional to 79,674.72, 119,585.99 and 40,259.51

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Solution

The fourth proportional to 79,674.72, 119,585.99 and 40,259.51 is: 60,426.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,674.72 : 119,585.99 = 40,259.51 : x
  2. Step 2: Convert to fraction form
    79,674.72/119,585.99 = 40,259.51/x
  3. Step 3: Cross multiply
    79,674.72x = 119,585.99 × 40,259.51
  4. Step 4: Simplify right side
    79,674.72x = 4,814,473,158.97
  5. Step 5: Solve for x
    x = 4,814,473,158.97/79,674.72
  6. Step 6: Final answer
    x = 60,426.61

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1.5x scale

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.