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Finding the Fourth Proportional to 86,649.50, 119,576.63 and 46,905.50

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Solution

The fourth proportional to 86,649.50, 119,576.63 and 46,905.50 is: 64,729.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,649.50 : 119,576.63 = 46,905.50 : x
  2. Step 2: Convert to fraction form
    86,649.50/119,576.63 = 46,905.50/x
  3. Step 3: Cross multiply
    86,649.50x = 119,576.63 × 46,905.50
  4. Step 4: Simplify right side
    86,649.50x = 5,608,801,618.47
  5. Step 5: Solve for x
    x = 5,608,801,618.47/86,649.50
  6. Step 6: Final answer
    x = 64,729.76

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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.