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Finding the Fourth Proportional to 125,751.57, 188,442.06 and 94,012.74

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Solution

The fourth proportional to 125,751.57, 188,442.06 and 94,012.74 is: 140,880.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,751.57 : 188,442.06 = 94,012.74 : x
  2. Step 2: Convert to fraction form
    125,751.57/188,442.06 = 94,012.74/x
  3. Step 3: Cross multiply
    125,751.57x = 188,442.06 × 94,012.74
  4. Step 4: Simplify right side
    125,751.57x = 17,715,954,391.84
  5. Step 5: Solve for x
    x = 17,715,954,391.84/125,751.57
  6. Step 6: Final answer
    x = 140,880.58

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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.