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Finding the Fourth Proportional to 121,589.25, 182,384.69 and 38,483.25

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Solution

The fourth proportional to 121,589.25, 182,384.69 and 38,483.25 is: 57,725.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,589.25 : 182,384.69 = 38,483.25 : x
  2. Step 2: Convert to fraction form
    121,589.25/182,384.69 = 38,483.25/x
  3. Step 3: Cross multiply
    121,589.25x = 182,384.69 × 38,483.25
  4. Step 4: Simplify right side
    121,589.25x = 7,018,755,429.03
  5. Step 5: Solve for x
    x = 7,018,755,429.03/121,589.25
  6. Step 6: Final answer
    x = 57,725.13

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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.