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Finding the Fourth Proportional to 289,013.88, 398,844.84 and 174,291.96

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Solution

The fourth proportional to 289,013.88, 398,844.84 and 174,291.96 is: 240,526.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,013.88 : 398,844.84 = 174,291.96 : x
  2. Step 2: Convert to fraction form
    289,013.88/398,844.84 = 174,291.96/x
  3. Step 3: Cross multiply
    289,013.88x = 398,844.84 × 174,291.96
  4. Step 4: Simplify right side
    289,013.88x = 69,515,448,899.49
  5. Step 5: Solve for x
    x = 69,515,448,899.49/289,013.88
  6. Step 6: Final answer
    x = 240,526.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.