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Finding the Fourth Proportional to 267,515.12, 400,989.76 and 98,927.12

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Solution

The fourth proportional to 267,515.12, 400,989.76 and 98,927.12 is: 148,286.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,515.12 : 400,989.76 = 98,927.12 : x
  2. Step 2: Convert to fraction form
    267,515.12/400,989.76 = 98,927.12/x
  3. Step 3: Cross multiply
    267,515.12x = 400,989.76 × 98,927.12
  4. Step 4: Simplify right side
    267,515.12x = 39,668,762,106.29
  5. Step 5: Solve for x
    x = 39,668,762,106.29/267,515.12
  6. Step 6: Final answer
    x = 148,286.06

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1.5x scale

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.