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Finding the Fourth Proportional to 86,797.56, 130,195.38 and 65,866.14

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Solution

The fourth proportional to 86,797.56, 130,195.38 and 65,866.14 is: 98,798.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,797.56 : 130,195.38 = 65,866.14 : x
  2. Step 2: Convert to fraction form
    86,797.56/130,195.38 = 65,866.14/x
  3. Step 3: Cross multiply
    86,797.56x = 130,195.38 × 65,866.14
  4. Step 4: Simplify right side
    86,797.56x = 8,575,467,126.43
  5. Step 5: Solve for x
    x = 8,575,467,126.43/86,797.56
  6. Step 6: Final answer
    x = 98,798.48

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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.