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Finding the Fourth Proportional to 86,606, 129,900.60 and 58,705.36

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Solution

The fourth proportional to 86,606, 129,900.60 and 58,705.36 is: 88,052.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,606 : 129,900.60 = 58,705.36 : x
  2. Step 2: Convert to fraction form
    86,606/129,900.60 = 58,705.36/x
  3. Step 3: Cross multiply
    86,606x = 129,900.60 × 58,705.36
  4. Step 4: Simplify right side
    86,606x = 7,625,861,487.22
  5. Step 5: Solve for x
    x = 7,625,861,487.22/86,606
  6. Step 6: Final answer
    x = 88,052.35

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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.