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Finding the Fourth Proportional to 86,200.56, 129,303 and 23,871.60

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Solution

The fourth proportional to 86,200.56, 129,303 and 23,871.60 is: 35,808.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,200.56 : 129,303 = 23,871.60 : x
  2. Step 2: Convert to fraction form
    86,200.56/129,303 = 23,871.60/x
  3. Step 3: Cross multiply
    86,200.56x = 129,303 × 23,871.60
  4. Step 4: Simplify right side
    86,200.56x = 3,086,669,494.80
  5. Step 5: Solve for x
    x = 3,086,669,494.80/86,200.56
  6. Step 6: Final answer
    x = 35,808.00

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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.