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Finding the Fourth Proportional to 366,955.64, 550,434.06 and 100,719.80

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Solution

The fourth proportional to 366,955.64, 550,434.06 and 100,719.80 is: 151,079.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,955.64 : 550,434.06 = 100,719.80 : x
  2. Step 2: Convert to fraction form
    366,955.64/550,434.06 = 100,719.80/x
  3. Step 3: Cross multiply
    366,955.64x = 550,434.06 × 100,719.80
  4. Step 4: Simplify right side
    366,955.64x = 55,439,608,436.39
  5. Step 5: Solve for x
    x = 55,439,608,436.39/366,955.64
  6. Step 6: Final answer
    x = 151,079.86

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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.