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Finding the Fourth Proportional to 265,763.13, 398,646.13 and 68,771.13

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Solution

The fourth proportional to 265,763.13, 398,646.13 and 68,771.13 is: 103,157.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,763.13 : 398,646.13 = 68,771.13 : x
  2. Step 2: Convert to fraction form
    265,763.13/398,646.13 = 68,771.13/x
  3. Step 3: Cross multiply
    265,763.13x = 398,646.13 × 68,771.13
  4. Step 4: Simplify right side
    265,763.13x = 27,415,342,837.00
  5. Step 5: Solve for x
    x = 27,415,342,837.00/265,763.13
  6. Step 6: Final answer
    x = 103,157.06

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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.