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Finding the Fourth Proportional to 366,917.80, 550,376.70 and 130,284.40

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Solution

The fourth proportional to 366,917.80, 550,376.70 and 130,284.40 is: 195,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,917.80 : 550,376.70 = 130,284.40 : x
  2. Step 2: Convert to fraction form
    366,917.80/550,376.70 = 130,284.40/x
  3. Step 3: Cross multiply
    366,917.80x = 550,376.70 × 130,284.40
  4. Step 4: Simplify right side
    366,917.80x = 71,705,498,133.48
  5. Step 5: Solve for x
    x = 71,705,498,133.48/366,917.80
  6. Step 6: Final answer
    x = 195,426.60

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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.