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Finding the Fourth Proportional to 84,753.26, 127,130.66 and 21,573.46

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Solution

The fourth proportional to 84,753.26, 127,130.66 and 21,573.46 is: 32,360.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,753.26 : 127,130.66 = 21,573.46 : x
  2. Step 2: Convert to fraction form
    84,753.26/127,130.66 = 21,573.46/x
  3. Step 3: Cross multiply
    84,753.26x = 127,130.66 × 21,573.46
  4. Step 4: Simplify right side
    84,753.26x = 2,742,648,208.28
  5. Step 5: Solve for x
    x = 2,742,648,208.28/84,753.26
  6. Step 6: Final answer
    x = 32,360.39

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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.