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Finding the Fourth Proportional to 187,415.88, 281,142.18 and 61,050.48

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Solution

The fourth proportional to 187,415.88, 281,142.18 and 61,050.48 is: 91,581.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,415.88 : 281,142.18 = 61,050.48 : x
  2. Step 2: Convert to fraction form
    187,415.88/281,142.18 = 61,050.48/x
  3. Step 3: Cross multiply
    187,415.88x = 281,142.18 × 61,050.48
  4. Step 4: Simplify right side
    187,415.88x = 17,163,865,037.25
  5. Step 5: Solve for x
    x = 17,163,865,037.25/187,415.88
  6. Step 6: Final answer
    x = 91,581.70

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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.