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Finding the Fourth Proportional to 187,946.60, 259,369.62 and 103,058.60

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Solution

The fourth proportional to 187,946.60, 259,369.62 and 103,058.60 is: 142,222.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,946.60 : 259,369.62 = 103,058.60 : x
  2. Step 2: Convert to fraction form
    187,946.60/259,369.62 = 103,058.60/x
  3. Step 3: Cross multiply
    187,946.60x = 259,369.62 × 103,058.60
  4. Step 4: Simplify right side
    187,946.60x = 26,730,269,919.73
  5. Step 5: Solve for x
    x = 26,730,269,919.73/187,946.60
  6. Step 6: Final answer
    x = 142,222.68

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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.