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Finding the Fourth Proportional to 366,930.30, 550,395.45 and 130,296.90

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Solution

The fourth proportional to 366,930.30, 550,395.45 and 130,296.90 is: 195,445.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,930.30 : 550,395.45 = 130,296.90 : x
  2. Step 2: Convert to fraction form
    366,930.30/550,395.45 = 130,296.90/x
  3. Step 3: Cross multiply
    366,930.30x = 550,395.45 × 130,296.90
  4. Step 4: Simplify right side
    366,930.30x = 71,714,820,909.11
  5. Step 5: Solve for x
    x = 71,714,820,909.11/366,930.30
  6. Step 6: Final answer
    x = 195,445.35

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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.