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Finding the Fourth Proportional to 187,369.59, 258,497.42 and 119,374.40

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Solution

The fourth proportional to 187,369.59, 258,497.42 and 119,374.40 is: 164,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,369.59 : 258,497.42 = 119,374.40 : x
  2. Step 2: Convert to fraction form
    187,369.59/258,497.42 = 119,374.40/x
  3. Step 3: Cross multiply
    187,369.59x = 258,497.42 × 119,374.40
  4. Step 4: Simplify right side
    187,369.59x = 30,857,972,524.69
  5. Step 5: Solve for x
    x = 30,857,972,524.69/187,369.59
  6. Step 6: Final answer
    x = 164,690.40

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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.