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Finding the Fourth Proportional to 250,871.65, 346,205.41 and 136,151.30

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Solution

The fourth proportional to 250,871.65, 346,205.41 and 136,151.30 is: 187,890.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,871.65 : 346,205.41 = 136,151.30 : x
  2. Step 2: Convert to fraction form
    250,871.65/346,205.41 = 136,151.30/x
  3. Step 3: Cross multiply
    250,871.65x = 346,205.41 × 136,151.30
  4. Step 4: Simplify right side
    250,871.65x = 47,136,317,163.67
  5. Step 5: Solve for x
    x = 47,136,317,163.67/250,871.65
  6. Step 6: Final answer
    x = 187,890.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.