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Finding the Fourth Proportional to 167,348.94, 251,023.39 and 42,689.94

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Solution

The fourth proportional to 167,348.94, 251,023.39 and 42,689.94 is: 64,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,348.94 : 251,023.39 = 42,689.94 : x
  2. Step 2: Convert to fraction form
    167,348.94/251,023.39 = 42,689.94/x
  3. Step 3: Cross multiply
    167,348.94x = 251,023.39 × 42,689.94
  4. Step 4: Simplify right side
    167,348.94x = 10,716,173,457.70
  5. Step 5: Solve for x
    x = 10,716,173,457.70/167,348.94
  6. Step 6: Final answer
    x = 64,034.90

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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.