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Finding the Fourth Proportional to 267,515.94, 401,282.58 and 99,078.72

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Solution

The fourth proportional to 267,515.94, 401,282.58 and 99,078.72 is: 148,621.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,515.94 : 401,282.58 = 99,078.72 : x
  2. Step 2: Convert to fraction form
    267,515.94/401,282.58 = 99,078.72/x
  3. Step 3: Cross multiply
    267,515.94x = 401,282.58 × 99,078.72
  4. Step 4: Simplify right side
    267,515.94x = 39,758,564,384.70
  5. Step 5: Solve for x
    x = 39,758,564,384.70/267,515.94
  6. Step 6: Final answer
    x = 148,621.29

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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.