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Finding the Fourth Proportional to 265,694.57, 398,500.77 and 97,175.48

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Solution

The fourth proportional to 265,694.57, 398,500.77 and 97,175.48 is: 145,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,694.57 : 398,500.77 = 97,175.48 : x
  2. Step 2: Convert to fraction form
    265,694.57/398,500.77 = 97,175.48/x
  3. Step 3: Cross multiply
    265,694.57x = 398,500.77 × 97,175.48
  4. Step 4: Simplify right side
    265,694.57x = 38,724,505,421.48
  5. Step 5: Solve for x
    x = 38,724,505,421.48/265,694.57
  6. Step 6: Final answer
    x = 145,748.20

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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.