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Finding the Fourth Proportional to 127,794.53, 191,726.31 and 39,045.62

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Solution

The fourth proportional to 127,794.53, 191,726.31 and 39,045.62 is: 58,578.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,794.53 : 191,726.31 = 39,045.62 : x
  2. Step 2: Convert to fraction form
    127,794.53/191,726.31 = 39,045.62/x
  3. Step 3: Cross multiply
    127,794.53x = 191,726.31 × 39,045.62
  4. Step 4: Simplify right side
    127,794.53x = 7,486,072,644.26
  5. Step 5: Solve for x
    x = 7,486,072,644.26/127,794.53
  6. Step 6: Final answer
    x = 58,578.98

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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.