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Finding the Fourth Proportional to 167,939.40, 251,903.70 and 55,624.80

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Solution

The fourth proportional to 167,939.40, 251,903.70 and 55,624.80 is: 83,435.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,939.40 : 251,903.70 = 55,624.80 : x
  2. Step 2: Convert to fraction form
    167,939.40/251,903.70 = 55,624.80/x
  3. Step 3: Cross multiply
    167,939.40x = 251,903.70 × 55,624.80
  4. Step 4: Simplify right side
    167,939.40x = 14,012,092,931.76
  5. Step 5: Solve for x
    x = 14,012,092,931.76/167,939.40
  6. Step 6: Final answer
    x = 83,435.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.