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Finding the Fourth Proportional to 88,967.98, 122,629.17 and 63,135.46

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Solution

The fourth proportional to 88,967.98, 122,629.17 and 63,135.46 is: 87,022.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,967.98 : 122,629.17 = 63,135.46 : x
  2. Step 2: Convert to fraction form
    88,967.98/122,629.17 = 63,135.46/x
  3. Step 3: Cross multiply
    88,967.98x = 122,629.17 × 63,135.46
  4. Step 4: Simplify right side
    88,967.98x = 7,742,249,057.37
  5. Step 5: Solve for x
    x = 7,742,249,057.37/88,967.98
  6. Step 6: Final answer
    x = 87,022.87

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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.