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Finding the Fourth Proportional to 170,228.48, 255,459.36 and 59,420.48

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Solution

The fourth proportional to 170,228.48, 255,459.36 and 59,420.48 is: 89,171.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,228.48 : 255,459.36 = 59,420.48 : x
  2. Step 2: Convert to fraction form
    170,228.48/255,459.36 = 59,420.48/x
  3. Step 3: Cross multiply
    170,228.48x = 255,459.36 × 59,420.48
  4. Step 4: Simplify right side
    170,228.48x = 15,179,517,791.69
  5. Step 5: Solve for x
    x = 15,179,517,791.69/170,228.48
  6. Step 6: Final answer
    x = 89,171.43

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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.