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Finding the Fourth Proportional to 92,966.76, 128,288.88 and 50,524.98

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Solution

The fourth proportional to 92,966.76, 128,288.88 and 50,524.98 is: 69,721.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,966.76 : 128,288.88 = 50,524.98 : x
  2. Step 2: Convert to fraction form
    92,966.76/128,288.88 = 50,524.98/x
  3. Step 3: Cross multiply
    92,966.76x = 128,288.88 × 50,524.98
  4. Step 4: Simplify right side
    92,966.76x = 6,481,793,096.22
  5. Step 5: Solve for x
    x = 6,481,793,096.22/92,966.76
  6. Step 6: Final answer
    x = 69,721.62

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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.