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Finding the Fourth Proportional to 234,926.59, 324,254.31 and 139,488.34

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Solution

The fourth proportional to 234,926.59, 324,254.31 and 139,488.34 is: 192,526.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,926.59 : 324,254.31 = 139,488.34 : x
  2. Step 2: Convert to fraction form
    234,926.59/324,254.31 = 139,488.34/x
  3. Step 3: Cross multiply
    234,926.59x = 324,254.31 × 139,488.34
  4. Step 4: Simplify right side
    234,926.59x = 45,229,695,439.75
  5. Step 5: Solve for x
    x = 45,229,695,439.75/234,926.59
  6. Step 6: Final answer
    x = 192,526.93

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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.