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Finding the Fourth Proportional to 273,419.10, 410,128.65 and 245,862.90

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Solution

The fourth proportional to 273,419.10, 410,128.65 and 245,862.90 is: 368,794.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,419.10 : 410,128.65 = 245,862.90 : x
  2. Step 2: Convert to fraction form
    273,419.10/410,128.65 = 245,862.90/x
  3. Step 3: Cross multiply
    273,419.10x = 410,128.65 × 245,862.90
  4. Step 4: Simplify right side
    273,419.10x = 100,835,419,262.09
  5. Step 5: Solve for x
    x = 100,835,419,262.09/273,419.10
  6. Step 6: Final answer
    x = 368,794.35

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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.