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Finding the Fourth Proportional to 123,258.60, 170,096.85 and 66,669.98

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Solution

The fourth proportional to 123,258.60, 170,096.85 and 66,669.98 is: 92,004.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,258.60 : 170,096.85 = 66,669.98 : x
  2. Step 2: Convert to fraction form
    123,258.60/170,096.85 = 66,669.98/x
  3. Step 3: Cross multiply
    123,258.60x = 170,096.85 × 66,669.98
  4. Step 4: Simplify right side
    123,258.60x = 11,340,352,737.08
  5. Step 5: Solve for x
    x = 11,340,352,737.08/123,258.60
  6. Step 6: Final answer
    x = 92,004.56

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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.