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Finding the Fourth Proportional to 79,588.15, 109,847.25 and 45,619.40

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Solution

The fourth proportional to 79,588.15, 109,847.25 and 45,619.40 is: 62,963.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,588.15 : 109,847.25 = 45,619.40 : x
  2. Step 2: Convert to fraction form
    79,588.15/109,847.25 = 45,619.40/x
  3. Step 3: Cross multiply
    79,588.15x = 109,847.25 × 45,619.40
  4. Step 4: Simplify right side
    79,588.15x = 5,011,165,911.27
  5. Step 5: Solve for x
    x = 5,011,165,911.27/79,588.15
  6. Step 6: Final answer
    x = 62,963.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.