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Finding the Fourth Proportional to 263,870.72, 364,623.76 and 192,125.76

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Solution

The fourth proportional to 263,870.72, 364,623.76 and 192,125.76 is: 265,484.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,870.72 : 364,623.76 = 192,125.76 : x
  2. Step 2: Convert to fraction form
    263,870.72/364,623.76 = 192,125.76/x
  3. Step 3: Cross multiply
    263,870.72x = 364,623.76 × 192,125.76
  4. Step 4: Simplify right side
    263,870.72x = 70,053,617,004.06
  5. Step 5: Solve for x
    x = 70,053,617,004.06/263,870.72
  6. Step 6: Final answer
    x = 265,484.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.