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Finding the Fourth Proportional to 164,513.16, 246,903.39 and 85,649.94

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Solution

The fourth proportional to 164,513.16, 246,903.39 and 85,649.94 is: 128,544.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,513.16 : 246,903.39 = 85,649.94 : x
  2. Step 2: Convert to fraction form
    164,513.16/246,903.39 = 85,649.94/x
  3. Step 3: Cross multiply
    164,513.16x = 246,903.39 × 85,649.94
  4. Step 4: Simplify right side
    164,513.16x = 21,147,260,539.30
  5. Step 5: Solve for x
    x = 21,147,260,539.30/164,513.16
  6. Step 6: Final answer
    x = 128,544.49

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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.