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Finding the Fourth Proportional to 64,138.68, 88,511.40 and 35,844.39

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Solution

The fourth proportional to 64,138.68, 88,511.40 and 35,844.39 is: 49,465.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,138.68 : 88,511.40 = 35,844.39 : x
  2. Step 2: Convert to fraction form
    64,138.68/88,511.40 = 35,844.39/x
  3. Step 3: Cross multiply
    64,138.68x = 88,511.40 × 35,844.39
  4. Step 4: Simplify right side
    64,138.68x = 3,172,637,141.05
  5. Step 5: Solve for x
    x = 3,172,637,141.05/64,138.68
  6. Step 6: Final answer
    x = 49,465.27

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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.