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Finding the Fourth Proportional to 171,396.76, 236,541.20 and 126,280.84

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Solution

The fourth proportional to 171,396.76, 236,541.20 and 126,280.84 is: 174,277.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,396.76 : 236,541.20 = 126,280.84 : x
  2. Step 2: Convert to fraction form
    171,396.76/236,541.20 = 126,280.84/x
  3. Step 3: Cross multiply
    171,396.76x = 236,541.20 × 126,280.84
  4. Step 4: Simplify right side
    171,396.76x = 29,870,621,430.61
  5. Step 5: Solve for x
    x = 29,870,621,430.61/171,396.76
  6. Step 6: Final answer
    x = 174,277.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.