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Finding the Fourth Proportional to 300,817.12, 415,127.24 and 164,859.60

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Solution

The fourth proportional to 300,817.12, 415,127.24 and 164,859.60 is: 227,506.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,817.12 : 415,127.24 = 164,859.60 : x
  2. Step 2: Convert to fraction form
    300,817.12/415,127.24 = 164,859.60/x
  3. Step 3: Cross multiply
    300,817.12x = 415,127.24 × 164,859.60
  4. Step 4: Simplify right side
    300,817.12x = 68,437,710,735.50
  5. Step 5: Solve for x
    x = 68,437,710,735.50/300,817.12
  6. Step 6: Final answer
    x = 227,506.04

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1.5x scale

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.