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Finding the Fourth Proportional to 265,846.80, 399,029.40 and 132,877.20

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Solution

The fourth proportional to 265,846.80, 399,029.40 and 132,877.20 is: 199,445.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,846.80 : 399,029.40 = 132,877.20 : x
  2. Step 2: Convert to fraction form
    265,846.80/399,029.40 = 132,877.20/x
  3. Step 3: Cross multiply
    265,846.80x = 399,029.40 × 132,877.20
  4. Step 4: Simplify right side
    265,846.80x = 53,021,909,389.68
  5. Step 5: Solve for x
    x = 53,021,909,389.68/265,846.80
  6. Step 6: Final answer
    x = 199,445.35

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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.