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Finding the Fourth Proportional to 135,491.92, 186,969.48 and 75,056.92

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Solution

The fourth proportional to 135,491.92, 186,969.48 and 75,056.92 is: 103,573.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,491.92 : 186,969.48 = 75,056.92 : x
  2. Step 2: Convert to fraction form
    135,491.92/186,969.48 = 75,056.92/x
  3. Step 3: Cross multiply
    135,491.92x = 186,969.48 × 75,056.92
  4. Step 4: Simplify right side
    135,491.92x = 14,033,353,302.80
  5. Step 5: Solve for x
    x = 14,033,353,302.80/135,491.92
  6. Step 6: Final answer
    x = 103,573.36

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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.