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Finding the Fourth Proportional to 366,892.80, 550,339.20 and 130,259.40

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Solution

The fourth proportional to 366,892.80, 550,339.20 and 130,259.40 is: 195,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,892.80 : 550,339.20 = 130,259.40 : x
  2. Step 2: Convert to fraction form
    366,892.80/550,339.20 = 130,259.40/x
  3. Step 3: Cross multiply
    366,892.80x = 550,339.20 × 130,259.40
  4. Step 4: Simplify right side
    366,892.80x = 71,686,853,988.48
  5. Step 5: Solve for x
    x = 71,686,853,988.48/366,892.80
  6. Step 6: Final answer
    x = 195,389.10

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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.