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Finding the Fourth Proportional to 67,243.41, 92,709.19 and 55,098.74

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Solution

The fourth proportional to 67,243.41, 92,709.19 and 55,098.74 is: 75,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,243.41 : 92,709.19 = 55,098.74 : x
  2. Step 2: Convert to fraction form
    67,243.41/92,709.19 = 55,098.74/x
  3. Step 3: Cross multiply
    67,243.41x = 92,709.19 × 55,098.74
  4. Step 4: Simplify right side
    67,243.41x = 5,108,159,856.07
  5. Step 5: Solve for x
    x = 5,108,159,856.07/67,243.41
  6. Step 6: Final answer
    x = 75,965.21

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1.5x scale

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.