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Finding the Fourth Proportional to 167,320.88, 250,981.32 and 42,661.88

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Solution

The fourth proportional to 167,320.88, 250,981.32 and 42,661.88 is: 63,992.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,320.88 : 250,981.32 = 42,661.88 : x
  2. Step 2: Convert to fraction form
    167,320.88/250,981.32 = 42,661.88/x
  3. Step 3: Cross multiply
    167,320.88x = 250,981.32 × 42,661.88
  4. Step 4: Simplify right side
    167,320.88x = 10,707,334,956.08
  5. Step 5: Solve for x
    x = 10,707,334,956.08/167,320.88
  6. Step 6: Final answer
    x = 63,992.82

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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.