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Finding the Fourth Proportional to 367,293.40, 550,940.10 and 130,643.80

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Solution

The fourth proportional to 367,293.40, 550,940.10 and 130,643.80 is: 195,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,293.40 : 550,940.10 = 130,643.80 : x
  2. Step 2: Convert to fraction form
    367,293.40/550,940.10 = 130,643.80/x
  3. Step 3: Cross multiply
    367,293.40x = 550,940.10 × 130,643.80
  4. Step 4: Simplify right side
    367,293.40x = 71,976,908,236.38
  5. Step 5: Solve for x
    x = 71,976,908,236.38/367,293.40
  6. Step 6: Final answer
    x = 195,965.70

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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.