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Finding the Fourth Proportional to 125,805.88, 188,710.44 and 37,039.20

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Solution

The fourth proportional to 125,805.88, 188,710.44 and 37,039.20 is: 55,559.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,805.88 : 188,710.44 = 37,039.20 : x
  2. Step 2: Convert to fraction form
    125,805.88/188,710.44 = 37,039.20/x
  3. Step 3: Cross multiply
    125,805.88x = 188,710.44 × 37,039.20
  4. Step 4: Simplify right side
    125,805.88x = 6,989,683,729.25
  5. Step 5: Solve for x
    x = 6,989,683,729.25/125,805.88
  6. Step 6: Final answer
    x = 55,559.28

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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.