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Finding the Fourth Proportional to 251,421.94, 377,131.92 and 101,660.41

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Solution

The fourth proportional to 251,421.94, 377,131.92 and 101,660.41 is: 152,490.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,421.94 : 377,131.92 = 101,660.41 : x
  2. Step 2: Convert to fraction form
    251,421.94/377,131.92 = 101,660.41/x
  3. Step 3: Cross multiply
    251,421.94x = 377,131.92 × 101,660.41
  4. Step 4: Simplify right side
    251,421.94x = 38,339,385,611.29
  5. Step 5: Solve for x
    x = 38,339,385,611.29/251,421.94
  6. Step 6: Final answer
    x = 152,490.21

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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.