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Finding the Fourth Proportional to 326,001, 449,883 and 190,129.17

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Solution

The fourth proportional to 326,001, 449,883 and 190,129.17 is: 262,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,001 : 449,883 = 190,129.17 : x
  2. Step 2: Convert to fraction form
    326,001/449,883 = 190,129.17/x
  3. Step 3: Cross multiply
    326,001x = 449,883 × 190,129.17
  4. Step 4: Simplify right side
    326,001x = 85,535,881,387.11
  5. Step 5: Solve for x
    x = 85,535,881,387.11/326,001
  6. Step 6: Final answer
    x = 262,379.20

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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.