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Finding the Fourth Proportional to 167,448.41, 231,077.89 and 90,966.90

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Solution

The fourth proportional to 167,448.41, 231,077.89 and 90,966.90 is: 125,533.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,448.41 : 231,077.89 = 90,966.90 : x
  2. Step 2: Convert to fraction form
    167,448.41/231,077.89 = 90,966.90/x
  3. Step 3: Cross multiply
    167,448.41x = 231,077.89 × 90,966.90
  4. Step 4: Simplify right side
    167,448.41x = 21,020,439,311.84
  5. Step 5: Solve for x
    x = 21,020,439,311.84/167,448.41
  6. Step 6: Final answer
    x = 125,533.82

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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.