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Finding the Fourth Proportional to 367,486.80, 551,230.20 and 130,853.40

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Solution

The fourth proportional to 367,486.80, 551,230.20 and 130,853.40 is: 196,280.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,486.80 : 551,230.20 = 130,853.40 : x
  2. Step 2: Convert to fraction form
    367,486.80/551,230.20 = 130,853.40/x
  3. Step 3: Cross multiply
    367,486.80x = 551,230.20 × 130,853.40
  4. Step 4: Simplify right side
    367,486.80x = 72,130,345,852.68
  5. Step 5: Solve for x
    x = 72,130,345,852.68/367,486.80
  6. Step 6: Final answer
    x = 196,280.10

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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.