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Finding the Fourth Proportional to 259,122, 357,677.85 and 151,726.56

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Solution

The fourth proportional to 259,122, 357,677.85 and 151,726.56 is: 209,435.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,122 : 357,677.85 = 151,726.56 : x
  2. Step 2: Convert to fraction form
    259,122/357,677.85 = 151,726.56/x
  3. Step 3: Cross multiply
    259,122x = 357,677.85 × 151,726.56
  4. Step 4: Simplify right side
    259,122x = 54,269,229,768.70
  5. Step 5: Solve for x
    x = 54,269,229,768.70/259,122
  6. Step 6: Final answer
    x = 209,435.05

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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.