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Finding the Fourth Proportional to 167,383.76, 230,988.80 and 90,902.32

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Solution

The fourth proportional to 167,383.76, 230,988.80 and 90,902.32 is: 125,444.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,383.76 : 230,988.80 = 90,902.32 : x
  2. Step 2: Convert to fraction form
    167,383.76/230,988.80 = 90,902.32/x
  3. Step 3: Cross multiply
    167,383.76x = 230,988.80 × 90,902.32
  4. Step 4: Simplify right side
    167,383.76x = 20,997,417,814.02
  5. Step 5: Solve for x
    x = 20,997,417,814.02/167,383.76
  6. Step 6: Final answer
    x = 125,444.77

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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.