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Finding the Fourth Proportional to 116,331.35, 174,583.87 and 86,414.67

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Solution

The fourth proportional to 116,331.35, 174,583.87 and 86,414.67 is: 129,686.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,331.35 : 174,583.87 = 86,414.67 : x
  2. Step 2: Convert to fraction form
    116,331.35/174,583.87 = 86,414.67/x
  3. Step 3: Cross multiply
    116,331.35x = 174,583.87 × 86,414.67
  4. Step 4: Simplify right side
    116,331.35x = 15,086,607,513.37
  5. Step 5: Solve for x
    x = 15,086,607,513.37/116,331.35
  6. Step 6: Final answer
    x = 129,686.52

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1.5x scale

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.