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Finding the Fourth Proportional to 167,297.74, 230,871.06 and 90,816.80

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Solution

The fourth proportional to 167,297.74, 230,871.06 and 90,816.80 is: 125,327.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,297.74 : 230,871.06 = 90,816.80 : x
  2. Step 2: Convert to fraction form
    167,297.74/230,871.06 = 90,816.80/x
  3. Step 3: Cross multiply
    167,297.74x = 230,871.06 × 90,816.80
  4. Step 4: Simplify right side
    167,297.74x = 20,966,970,881.81
  5. Step 5: Solve for x
    x = 20,966,970,881.81/167,297.74
  6. Step 6: Final answer
    x = 125,327.28

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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.