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Finding the Fourth Proportional to 212,866.68, 293,755.71 and 117,373.61

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Solution

The fourth proportional to 212,866.68, 293,755.71 and 117,373.61 is: 161,975.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,866.68 : 293,755.71 = 117,373.61 : x
  2. Step 2: Convert to fraction form
    212,866.68/293,755.71 = 117,373.61/x
  3. Step 3: Cross multiply
    212,866.68x = 293,755.71 × 117,373.61
  4. Step 4: Simplify right side
    212,866.68x = 34,479,167,662.98
  5. Step 5: Solve for x
    x = 34,479,167,662.98/212,866.68
  6. Step 6: Final answer
    x = 161,975.41

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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.