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Finding the Fourth Proportional to 167,435, 231,060.39 and 91,988.36

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Solution

The fourth proportional to 167,435, 231,060.39 and 91,988.36 is: 126,943.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,435 : 231,060.39 = 91,988.36 : x
  2. Step 2: Convert to fraction form
    167,435/231,060.39 = 91,988.36/x
  3. Step 3: Cross multiply
    167,435x = 231,060.39 × 91,988.36
  4. Step 4: Simplify right side
    167,435x = 21,254,866,337.06
  5. Step 5: Solve for x
    x = 21,254,866,337.06/167,435
  6. Step 6: Final answer
    x = 126,943.99

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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.