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Finding the Fourth Proportional to 266,889.34, 399,891.10 and 187,837.50

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Solution

The fourth proportional to 266,889.34, 399,891.10 and 187,837.50 is: 281,444.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,889.34 : 399,891.10 = 187,837.50 : x
  2. Step 2: Convert to fraction form
    266,889.34/399,891.10 = 187,837.50/x
  3. Step 3: Cross multiply
    266,889.34x = 399,891.10 × 187,837.50
  4. Step 4: Simplify right side
    266,889.34x = 75,114,544,496.25
  5. Step 5: Solve for x
    x = 75,114,544,496.25/266,889.34
  6. Step 6: Final answer
    x = 281,444.53

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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.