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Finding the Fourth Proportional to 81,762.75, 112,841.96 and 45,467.82

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Solution

The fourth proportional to 81,762.75, 112,841.96 and 45,467.82 is: 62,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,762.75 : 112,841.96 = 45,467.82 : x
  2. Step 2: Convert to fraction form
    81,762.75/112,841.96 = 45,467.82/x
  3. Step 3: Cross multiply
    81,762.75x = 112,841.96 × 45,467.82
  4. Step 4: Simplify right side
    81,762.75x = 5,130,677,698.39
  5. Step 5: Solve for x
    x = 5,130,677,698.39/81,762.75
  6. Step 6: Final answer
    x = 62,750.80

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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.