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Finding the Fourth Proportional to 187,415.84, 281,234.64 and 69,169.52

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Solution

The fourth proportional to 187,415.84, 281,234.64 and 69,169.52 is: 103,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,415.84 : 281,234.64 = 69,169.52 : x
  2. Step 2: Convert to fraction form
    187,415.84/281,234.64 = 69,169.52/x
  3. Step 3: Cross multiply
    187,415.84x = 281,234.64 × 69,169.52
  4. Step 4: Simplify right side
    187,415.84x = 19,452,865,056.17
  5. Step 5: Solve for x
    x = 19,452,865,056.17/187,415.84
  6. Step 6: Final answer
    x = 103,795.20

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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.