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Finding the Fourth Proportional to 230,586.68, 345,890.62 and 70,651.16

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Solution

The fourth proportional to 230,586.68, 345,890.62 and 70,651.16 is: 105,979.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,586.68 : 345,890.62 = 70,651.16 : x
  2. Step 2: Convert to fraction form
    230,586.68/345,890.62 = 70,651.16/x
  3. Step 3: Cross multiply
    230,586.68x = 345,890.62 × 70,651.16
  4. Step 4: Simplify right side
    230,586.68x = 24,437,573,536.12
  5. Step 5: Solve for x
    x = 24,437,573,536.12/230,586.68
  6. Step 6: Final answer
    x = 105,979.99

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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.