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Finding the Fourth Proportional to 234,316.37, 351,401.90 and 84,537.20

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Solution

The fourth proportional to 234,316.37, 351,401.90 and 84,537.20 is: 126,779.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,316.37 : 351,401.90 = 84,537.20 : x
  2. Step 2: Convert to fraction form
    234,316.37/351,401.90 = 84,537.20/x
  3. Step 3: Cross multiply
    234,316.37x = 351,401.90 × 84,537.20
  4. Step 4: Simplify right side
    234,316.37x = 29,706,533,156.50
  5. Step 5: Solve for x
    x = 29,706,533,156.50/234,316.37
  6. Step 6: Final answer
    x = 126,779.59

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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.