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Finding the Fourth Proportional to 173,189.52, 259,405.20 and 102,913.92

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Solution

The fourth proportional to 173,189.52, 259,405.20 and 102,913.92 is: 154,145.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,189.52 : 259,405.20 = 102,913.92 : x
  2. Step 2: Convert to fraction form
    173,189.52/259,405.20 = 102,913.92/x
  3. Step 3: Cross multiply
    173,189.52x = 259,405.20 × 102,913.92
  4. Step 4: Simplify right side
    173,189.52x = 26,696,406,000.38
  5. Step 5: Solve for x
    x = 26,696,406,000.38/173,189.52
  6. Step 6: Final answer
    x = 154,145.62

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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.