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Finding the Fourth Proportional to 64,139.51, 88,511.90 and 35,845.22

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Solution

The fourth proportional to 64,139.51, 88,511.90 and 35,845.22 is: 49,466.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,139.51 : 88,511.90 = 35,845.22 : x
  2. Step 2: Convert to fraction form
    64,139.51/88,511.90 = 35,845.22/x
  3. Step 3: Cross multiply
    64,139.51x = 88,511.90 × 35,845.22
  4. Step 4: Simplify right side
    64,139.51x = 3,172,727,906.33
  5. Step 5: Solve for x
    x = 3,172,727,906.33/64,139.51
  6. Step 6: Final answer
    x = 49,466.05

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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.