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Finding the Fourth Proportional to 234,647.35, 351,939.80 and 66,181.21

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Solution

The fourth proportional to 234,647.35, 351,939.80 and 66,181.21 is: 99,263.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,647.35 : 351,939.80 = 66,181.21 : x
  2. Step 2: Convert to fraction form
    234,647.35/351,939.80 = 66,181.21/x
  3. Step 3: Cross multiply
    234,647.35x = 351,939.80 × 66,181.21
  4. Step 4: Simplify right side
    234,647.35x = 23,291,800,051.46
  5. Step 5: Solve for x
    x = 23,291,800,051.46/234,647.35
  6. Step 6: Final answer
    x = 99,263.00

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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.