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Finding the Fourth Proportional to 125,705.88, 188,558.76 and 36,960.12

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Solution

The fourth proportional to 125,705.88, 188,558.76 and 36,960.12 is: 55,440.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,705.88 : 188,558.76 = 36,960.12 : x
  2. Step 2: Convert to fraction form
    125,705.88/188,558.76 = 36,960.12/x
  3. Step 3: Cross multiply
    125,705.88x = 188,558.76 × 36,960.12
  4. Step 4: Simplify right side
    125,705.88x = 6,969,154,396.65
  5. Step 5: Solve for x
    x = 6,969,154,396.65/125,705.88
  6. Step 6: Final answer
    x = 55,440.16

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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.