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Finding the Fourth Proportional to 86,568.64, 129,926.64 and 34,014.88

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Solution

The fourth proportional to 86,568.64, 129,926.64 and 34,014.88 is: 51,051.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,568.64 : 129,926.64 = 34,014.88 : x
  2. Step 2: Convert to fraction form
    86,568.64/129,926.64 = 34,014.88/x
  3. Step 3: Cross multiply
    86,568.64x = 129,926.64 × 34,014.88
  4. Step 4: Simplify right side
    86,568.64x = 4,419,439,068.40
  5. Step 5: Solve for x
    x = 4,419,439,068.40/86,568.64
  6. Step 6: Final answer
    x = 51,051.27

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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.