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Finding the Fourth Proportional to 126,343.56, 174,349.62 and 69,754.80

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Solution

The fourth proportional to 126,343.56, 174,349.62 and 69,754.80 is: 96,259.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,343.56 : 174,349.62 = 69,754.80 : x
  2. Step 2: Convert to fraction form
    126,343.56/174,349.62 = 69,754.80/x
  3. Step 3: Cross multiply
    126,343.56x = 174,349.62 × 69,754.80
  4. Step 4: Simplify right side
    126,343.56x = 12,161,722,873.18
  5. Step 5: Solve for x
    x = 12,161,722,873.18/126,343.56
  6. Step 6: Final answer
    x = 96,259.14

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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.