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Finding the Fourth Proportional to 84,980.76, 127,468.26 and 32,388.36

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Solution

The fourth proportional to 84,980.76, 127,468.26 and 32,388.36 is: 48,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,980.76 : 127,468.26 = 32,388.36 : x
  2. Step 2: Convert to fraction form
    84,980.76/127,468.26 = 32,388.36/x
  3. Step 3: Cross multiply
    84,980.76x = 127,468.26 × 32,388.36
  4. Step 4: Simplify right side
    84,980.76x = 4,128,487,893.45
  5. Step 5: Solve for x
    x = 4,128,487,893.45/84,980.76
  6. Step 6: Final answer
    x = 48,581.44

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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.