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Finding the Fourth Proportional to 123,955.12, 171,059.16 and 67,366.54

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Solution

The fourth proportional to 123,955.12, 171,059.16 and 67,366.54 is: 92,966.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,955.12 : 171,059.16 = 67,366.54 : x
  2. Step 2: Convert to fraction form
    123,955.12/171,059.16 = 67,366.54/x
  3. Step 3: Cross multiply
    123,955.12x = 171,059.16 × 67,366.54
  4. Step 4: Simplify right side
    123,955.12x = 11,523,663,744.51
  5. Step 5: Solve for x
    x = 11,523,663,744.51/123,955.12
  6. Step 6: Final answer
    x = 92,966.42

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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.