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Finding the Fourth Proportional to 169,451.67, 253,776.76 and 147,143.82

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Solution

The fourth proportional to 169,451.67, 253,776.76 and 147,143.82 is: 220,367.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,451.67 : 253,776.76 = 147,143.82 : x
  2. Step 2: Convert to fraction form
    169,451.67/253,776.76 = 147,143.82/x
  3. Step 3: Cross multiply
    169,451.67x = 253,776.76 × 147,143.82
  4. Step 4: Simplify right side
    169,451.67x = 37,341,681,893.62
  5. Step 5: Solve for x
    x = 37,341,681,893.62/169,451.67
  6. Step 6: Final answer
    x = 220,367.74

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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.