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Finding the Fourth Proportional to 125,636.46, 188,371.37 and 45,664.93

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Solution

The fourth proportional to 125,636.46, 188,371.37 and 45,664.93 is: 68,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,636.46 : 188,371.37 = 45,664.93 : x
  2. Step 2: Convert to fraction form
    125,636.46/188,371.37 = 45,664.93/x
  3. Step 3: Cross multiply
    125,636.46x = 188,371.37 × 45,664.93
  4. Step 4: Simplify right side
    125,636.46x = 8,601,964,254.87
  5. Step 5: Solve for x
    x = 8,601,964,254.87/125,636.46
  6. Step 6: Final answer
    x = 68,467.10

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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.