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Finding the Fourth Proportional to 267,098.07, 400,686.81 and 77,560.11

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Solution

The fourth proportional to 267,098.07, 400,686.81 and 77,560.11 is: 116,351.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,098.07 : 400,686.81 = 77,560.11 : x
  2. Step 2: Convert to fraction form
    267,098.07/400,686.81 = 77,560.11/x
  3. Step 3: Cross multiply
    267,098.07x = 400,686.81 × 77,560.11
  4. Step 4: Simplify right side
    267,098.07x = 31,077,313,059.15
  5. Step 5: Solve for x
    x = 31,077,313,059.15/267,098.07
  6. Step 6: Final answer
    x = 116,351.69

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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.