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Finding the Fourth Proportional to 117,616.57, 162,299.14 and 66,619.12

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Solution

The fourth proportional to 117,616.57, 162,299.14 and 66,619.12 is: 91,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,616.57 : 162,299.14 = 66,619.12 : x
  2. Step 2: Convert to fraction form
    117,616.57/162,299.14 = 66,619.12/x
  3. Step 3: Cross multiply
    117,616.57x = 162,299.14 × 66,619.12
  4. Step 4: Simplify right side
    117,616.57x = 10,812,225,883.56
  5. Step 5: Solve for x
    x = 10,812,225,883.56/117,616.57
  6. Step 6: Final answer
    x = 91,927.74

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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.