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Finding the Fourth Proportional to 187,871.92, 259,289.94 and 116,275

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Solution

The fourth proportional to 187,871.92, 259,289.94 and 116,275 is: 160,476.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,871.92 : 259,289.94 = 116,275 : x
  2. Step 2: Convert to fraction form
    187,871.92/259,289.94 = 116,275/x
  3. Step 3: Cross multiply
    187,871.92x = 259,289.94 × 116,275
  4. Step 4: Simplify right side
    187,871.92x = 30,148,937,773.50
  5. Step 5: Solve for x
    x = 30,148,937,773.50/187,871.92
  6. Step 6: Final answer
    x = 160,476.02

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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.