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Finding the Fourth Proportional to 86,059.44, 118,728.84 and 63,452.20

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Solution

The fourth proportional to 86,059.44, 118,728.84 and 63,452.20 is: 87,539.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,059.44 : 118,728.84 = 63,452.20 : x
  2. Step 2: Convert to fraction form
    86,059.44/118,728.84 = 63,452.20/x
  3. Step 3: Cross multiply
    86,059.44x = 118,728.84 × 63,452.20
  4. Step 4: Simplify right side
    86,059.44x = 7,533,606,101.45
  5. Step 5: Solve for x
    x = 7,533,606,101.45/86,059.44
  6. Step 6: Final answer
    x = 87,539.57

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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.