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Finding the Fourth Proportional to 187,415.53, 281,123.09 and 61,055.61

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Solution

The fourth proportional to 187,415.53, 281,123.09 and 61,055.61 is: 91,583.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,415.53 : 281,123.09 = 61,055.61 : x
  2. Step 2: Convert to fraction form
    187,415.53/281,123.09 = 61,055.61/x
  3. Step 3: Cross multiply
    187,415.53x = 281,123.09 × 61,055.61
  4. Step 4: Simplify right side
    187,415.53x = 17,164,142,058.07
  5. Step 5: Solve for x
    x = 17,164,142,058.07/187,415.53
  6. Step 6: Final answer
    x = 91,583.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.