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Finding the Fourth Proportional to 207,817.40, 311,726.10 and 182,156.60

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Solution

The fourth proportional to 207,817.40, 311,726.10 and 182,156.60 is: 273,234.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,817.40 : 311,726.10 = 182,156.60 : x
  2. Step 2: Convert to fraction form
    207,817.40/311,726.10 = 182,156.60/x
  3. Step 3: Cross multiply
    207,817.40x = 311,726.10 × 182,156.60
  4. Step 4: Simplify right side
    207,817.40x = 56,782,966,507.26
  5. Step 5: Solve for x
    x = 56,782,966,507.26/207,817.40
  6. Step 6: Final answer
    x = 273,234.90

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1.5x scale

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.