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Finding the Fourth Proportional to 201,521.30, 301,844.55 and 166,529.30

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Solution

The fourth proportional to 201,521.30, 301,844.55 and 166,529.30 is: 249,432.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,521.30 : 301,844.55 = 166,529.30 : x
  2. Step 2: Convert to fraction form
    201,521.30/301,844.55 = 166,529.30/x
  3. Step 3: Cross multiply
    201,521.30x = 301,844.55 × 166,529.30
  4. Step 4: Simplify right side
    201,521.30x = 50,265,961,620.32
  5. Step 5: Solve for x
    x = 50,265,961,620.32/201,521.30
  6. Step 6: Final answer
    x = 249,432.50

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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.