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Finding the Fourth Proportional to 79,228, 109,335.51 and 43,417.24

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Solution

The fourth proportional to 79,228, 109,335.51 and 43,417.24 is: 59,916.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,228 : 109,335.51 = 43,417.24 : x
  2. Step 2: Convert to fraction form
    79,228/109,335.51 = 43,417.24/x
  3. Step 3: Cross multiply
    79,228x = 109,335.51 × 43,417.24
  4. Step 4: Simplify right side
    79,228x = 4,747,046,078.19
  5. Step 5: Solve for x
    x = 4,747,046,078.19/79,228
  6. Step 6: Final answer
    x = 59,916.27

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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.