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Finding the Fourth Proportional to 64,985.56, 97,256.56 and 54,467.46

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Solution

The fourth proportional to 64,985.56, 97,256.56 and 54,467.46 is: 81,515.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,985.56 : 97,256.56 = 54,467.46 : x
  2. Step 2: Convert to fraction form
    64,985.56/97,256.56 = 54,467.46/x
  3. Step 3: Cross multiply
    64,985.56x = 97,256.56 × 54,467.46
  4. Step 4: Simplify right side
    64,985.56x = 5,297,317,791.54
  5. Step 5: Solve for x
    x = 5,297,317,791.54/64,985.56
  6. Step 6: Final answer
    x = 81,515.31

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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.