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Finding the Fourth Proportional to 234,484.20, 351,801.63 and 76,676.76

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Solution

The fourth proportional to 234,484.20, 351,801.63 and 76,676.76 is: 115,039.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,484.20 : 351,801.63 = 76,676.76 : x
  2. Step 2: Convert to fraction form
    234,484.20/351,801.63 = 76,676.76/x
  3. Step 3: Cross multiply
    234,484.20x = 351,801.63 × 76,676.76
  4. Step 4: Simplify right side
    234,484.20x = 26,975,009,151.12
  5. Step 5: Solve for x
    x = 26,975,009,151.12/234,484.20
  6. Step 6: Final answer
    x = 115,039.77

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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.