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Finding the Fourth Proportional to 187,951.84, 259,373.28 and 103,068.88

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Solution

The fourth proportional to 187,951.84, 259,373.28 and 103,068.88 is: 142,234.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,951.84 : 259,373.28 = 103,068.88 : x
  2. Step 2: Convert to fraction form
    187,951.84/259,373.28 = 103,068.88/x
  3. Step 3: Cross multiply
    187,951.84x = 259,373.28 × 103,068.88
  4. Step 4: Simplify right side
    187,951.84x = 26,733,313,471.53
  5. Step 5: Solve for x
    x = 26,733,313,471.53/187,951.84
  6. Step 6: Final answer
    x = 142,234.91

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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.