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Finding the Fourth Proportional to 86,558.54, 129,496.26 and 65,559.26

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Solution

The fourth proportional to 86,558.54, 129,496.26 and 65,559.26 is: 98,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,558.54 : 129,496.26 = 65,559.26 : x
  2. Step 2: Convert to fraction form
    86,558.54/129,496.26 = 65,559.26/x
  3. Step 3: Cross multiply
    86,558.54x = 129,496.26 × 65,559.26
  4. Step 4: Simplify right side
    86,558.54x = 8,489,678,978.37
  5. Step 5: Solve for x
    x = 8,489,678,978.37/86,558.54
  6. Step 6: Final answer
    x = 98,080.20

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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.