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Finding the Fourth Proportional to 125,705.88, 188,521.90 and 36,938.28

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Solution

The fourth proportional to 125,705.88, 188,521.90 and 36,938.28 is: 55,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,705.88 : 188,521.90 = 36,938.28 : x
  2. Step 2: Convert to fraction form
    125,705.88/188,521.90 = 36,938.28/x
  3. Step 3: Cross multiply
    125,705.88x = 188,521.90 × 36,938.28
  4. Step 4: Simplify right side
    125,705.88x = 6,963,674,728.33
  5. Step 5: Solve for x
    x = 6,963,674,728.33/125,705.88
  6. Step 6: Final answer
    x = 55,396.57

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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.