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Finding the Fourth Proportional to 116,337.68, 174,161.76 and 71,821.28

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Solution

The fourth proportional to 116,337.68, 174,161.76 and 71,821.28 is: 107,519.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,337.68 : 174,161.76 = 71,821.28 : x
  2. Step 2: Convert to fraction form
    116,337.68/174,161.76 = 71,821.28/x
  3. Step 3: Cross multiply
    116,337.68x = 174,161.76 × 71,821.28
  4. Step 4: Simplify right side
    116,337.68x = 12,508,520,530.25
  5. Step 5: Solve for x
    x = 12,508,520,530.25/116,337.68
  6. Step 6: Final answer
    x = 107,519.08

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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.