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Finding the Fourth Proportional to 366,928.80, 550,393.20 and 130,295.40

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Solution

The fourth proportional to 366,928.80, 550,393.20 and 130,295.40 is: 195,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,928.80 : 550,393.20 = 130,295.40 : x
  2. Step 2: Convert to fraction form
    366,928.80/550,393.20 = 130,295.40/x
  3. Step 3: Cross multiply
    366,928.80x = 550,393.20 × 130,295.40
  4. Step 4: Simplify right side
    366,928.80x = 71,713,702,151.28
  5. Step 5: Solve for x
    x = 71,713,702,151.28/366,928.80
  6. Step 6: Final answer
    x = 195,443.10

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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.