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Finding the Fourth Proportional to 424,034.28, 635,895.90 and 124,437.96

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Solution

The fourth proportional to 424,034.28, 635,895.90 and 124,437.96 is: 186,611.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,034.28 : 635,895.90 = 124,437.96 : x
  2. Step 2: Convert to fraction form
    424,034.28/635,895.90 = 124,437.96/x
  3. Step 3: Cross multiply
    424,034.28x = 635,895.90 × 124,437.96
  4. Step 4: Simplify right side
    424,034.28x = 79,129,588,568.36
  5. Step 5: Solve for x
    x = 79,129,588,568.36/424,034.28
  6. Step 6: Final answer
    x = 186,611.30

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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.