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Finding the Fourth Proportional to 84,757.76, 116,971.17 and 47,032.01

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Solution

The fourth proportional to 84,757.76, 116,971.17 and 47,032.01 is: 64,907.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,757.76 : 116,971.17 = 47,032.01 : x
  2. Step 2: Convert to fraction form
    84,757.76/116,971.17 = 47,032.01/x
  3. Step 3: Cross multiply
    84,757.76x = 116,971.17 × 47,032.01
  4. Step 4: Simplify right side
    84,757.76x = 5,501,388,652.30
  5. Step 5: Solve for x
    x = 5,501,388,652.30/84,757.76
  6. Step 6: Final answer
    x = 64,907.20

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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.