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Finding the Fourth Proportional to 235,266.69, 324,631.49 and 139,770.93

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Solution

The fourth proportional to 235,266.69, 324,631.49 and 139,770.93 is: 192,862.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,266.69 : 324,631.49 = 139,770.93 : x
  2. Step 2: Convert to fraction form
    235,266.69/324,631.49 = 139,770.93/x
  3. Step 3: Cross multiply
    235,266.69x = 324,631.49 × 139,770.93
  4. Step 4: Simplify right side
    235,266.69x = 45,374,044,565.73
  5. Step 5: Solve for x
    x = 45,374,044,565.73/235,266.69
  6. Step 6: Final answer
    x = 192,862.17

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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.