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Finding the Fourth Proportional to 79,627.64, 109,886.64 and 43,816.64

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Solution

The fourth proportional to 79,627.64, 109,886.64 and 43,816.64 is: 60,467.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,627.64 : 109,886.64 = 43,816.64 : x
  2. Step 2: Convert to fraction form
    79,627.64/109,886.64 = 43,816.64/x
  3. Step 3: Cross multiply
    79,627.64x = 109,886.64 × 43,816.64
  4. Step 4: Simplify right side
    79,627.64x = 4,814,863,345.69
  5. Step 5: Solve for x
    x = 4,814,863,345.69/79,627.64
  6. Step 6: Final answer
    x = 60,467.24

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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.