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Finding the Fourth Proportional to 267,915.20, 401,313.90 and 125,881.70

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Solution

The fourth proportional to 267,915.20, 401,313.90 and 125,881.70 is: 188,559.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,915.20 : 401,313.90 = 125,881.70 : x
  2. Step 2: Convert to fraction form
    267,915.20/401,313.90 = 125,881.70/x
  3. Step 3: Cross multiply
    267,915.20x = 401,313.90 × 125,881.70
  4. Step 4: Simplify right side
    267,915.20x = 50,518,075,965.63
  5. Step 5: Solve for x
    x = 50,518,075,965.63/267,915.20
  6. Step 6: Final answer
    x = 188,559.95

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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.