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Finding the Fourth Proportional to 200,821.52, 301,022.10 and 67,655.77

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Solution

The fourth proportional to 200,821.52, 301,022.10 and 67,655.77 is: 101,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,821.52 : 301,022.10 = 67,655.77 : x
  2. Step 2: Convert to fraction form
    200,821.52/301,022.10 = 67,655.77/x
  3. Step 3: Cross multiply
    200,821.52x = 301,022.10 × 67,655.77
  4. Step 4: Simplify right side
    200,821.52x = 20,365,881,209.96
  5. Step 5: Solve for x
    x = 20,365,881,209.96/200,821.52
  6. Step 6: Final answer
    x = 101,412.84

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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.