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Finding the Fourth Proportional to 200,914.76, 301,372.16 and 156,574.69

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Solution

The fourth proportional to 200,914.76, 301,372.16 and 156,574.69 is: 234,862.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,914.76 : 301,372.16 = 156,574.69 : x
  2. Step 2: Convert to fraction form
    200,914.76/301,372.16 = 156,574.69/x
  3. Step 3: Cross multiply
    200,914.76x = 301,372.16 × 156,574.69
  4. Step 4: Simplify right side
    200,914.76x = 47,187,250,990.33
  5. Step 5: Solve for x
    x = 47,187,250,990.33/200,914.76
  6. Step 6: Final answer
    x = 234,862.04

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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.