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Finding the Fourth Proportional to 86,069.67, 118,742.81 and 63,462.30

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Solution

The fourth proportional to 86,069.67, 118,742.81 and 63,462.30 is: 87,553.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,069.67 : 118,742.81 = 63,462.30 : x
  2. Step 2: Convert to fraction form
    86,069.67/118,742.81 = 63,462.30/x
  3. Step 3: Cross multiply
    86,069.67x = 118,742.81 × 63,462.30
  4. Step 4: Simplify right side
    86,069.67x = 7,535,691,513.75
  5. Step 5: Solve for x
    x = 7,535,691,513.75/86,069.67
  6. Step 6: Final answer
    x = 87,553.39

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1.5x scale

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.