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Finding the Fourth Proportional to 265,446.55, 398,164.96 and 65,767.38

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Solution

The fourth proportional to 265,446.55, 398,164.96 and 65,767.38 is: 98,649.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,446.55 : 398,164.96 = 65,767.38 : x
  2. Step 2: Convert to fraction form
    265,446.55/398,164.96 = 65,767.38/x
  3. Step 3: Cross multiply
    265,446.55x = 398,164.96 × 65,767.38
  4. Step 4: Simplify right side
    265,446.55x = 26,186,266,227.00
  5. Step 5: Solve for x
    x = 26,186,266,227.00/265,446.55
  6. Step 6: Final answer
    x = 98,649.86

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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.