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Finding the Fourth Proportional to 64,371.44, 96,564.45 and 57,756.98

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Solution

The fourth proportional to 64,371.44, 96,564.45 and 57,756.98 is: 86,642.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,371.44 : 96,564.45 = 57,756.98 : x
  2. Step 2: Convert to fraction form
    64,371.44/96,564.45 = 57,756.98/x
  3. Step 3: Cross multiply
    64,371.44x = 96,564.45 × 57,756.98
  4. Step 4: Simplify right side
    64,371.44x = 5,577,271,007.36
  5. Step 5: Solve for x
    x = 5,577,271,007.36/64,371.44
  6. Step 6: Final answer
    x = 86,642.01

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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.