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Finding the Fourth Proportional to 173,189.88, 259,920.72 and 88,946.64

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Solution

The fourth proportional to 173,189.88, 259,920.72 and 88,946.64 is: 133,489.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,189.88 : 259,920.72 = 88,946.64 : x
  2. Step 2: Convert to fraction form
    173,189.88/259,920.72 = 88,946.64/x
  3. Step 3: Cross multiply
    173,189.88x = 259,920.72 × 88,946.64
  4. Step 4: Simplify right side
    173,189.88x = 23,119,074,710.38
  5. Step 5: Solve for x
    x = 23,119,074,710.38/173,189.88
  6. Step 6: Final answer
    x = 133,489.76

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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.