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Finding the Fourth Proportional to 167,383.30, 230,988.20 and 90,901.80

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Solution

The fourth proportional to 167,383.30, 230,988.20 and 90,901.80 is: 125,444.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,383.30 : 230,988.20 = 90,901.80 : x
  2. Step 2: Convert to fraction form
    167,383.30/230,988.20 = 90,901.80/x
  3. Step 3: Cross multiply
    167,383.30x = 230,988.20 × 90,901.80
  4. Step 4: Simplify right side
    167,383.30x = 20,997,243,158.76
  5. Step 5: Solve for x
    x = 20,997,243,158.76/167,383.30
  6. Step 6: Final answer
    x = 125,444.07

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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.