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Finding the Fourth Proportional to 170,797.61, 256,205.75 and 70,967.90

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Solution

The fourth proportional to 170,797.61, 256,205.75 and 70,967.90 is: 106,455.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,797.61 : 256,205.75 = 70,967.90 : x
  2. Step 2: Convert to fraction form
    170,797.61/256,205.75 = 70,967.90/x
  3. Step 3: Cross multiply
    170,797.61x = 256,205.75 × 70,967.90
  4. Step 4: Simplify right side
    170,797.61x = 18,182,384,331.10
  5. Step 5: Solve for x
    x = 18,182,384,331.10/170,797.61
  6. Step 6: Final answer
    x = 106,455.73

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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.