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Finding the Fourth Proportional to 295,963.80, 443,945.70 and 129,751.80

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Solution

The fourth proportional to 295,963.80, 443,945.70 and 129,751.80 is: 194,627.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,963.80 : 443,945.70 = 129,751.80 : x
  2. Step 2: Convert to fraction form
    295,963.80/443,945.70 = 129,751.80/x
  3. Step 3: Cross multiply
    295,963.80x = 443,945.70 × 129,751.80
  4. Step 4: Simplify right side
    295,963.80x = 57,602,753,677.26
  5. Step 5: Solve for x
    x = 57,602,753,677.26/295,963.80
  6. Step 6: Final answer
    x = 194,627.70

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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.