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Finding the Fourth Proportional to 123,258.62, 170,096.91 and 66,670.01

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Solution

The fourth proportional to 123,258.62, 170,096.91 and 66,670.01 is: 92,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,258.62 : 170,096.91 = 66,670.01 : x
  2. Step 2: Convert to fraction form
    123,258.62/170,096.91 = 66,670.01/x
  3. Step 3: Cross multiply
    123,258.62x = 170,096.91 × 66,670.01
  4. Step 4: Simplify right side
    123,258.62x = 11,340,362,690.67
  5. Step 5: Solve for x
    x = 11,340,362,690.67/123,258.62
  6. Step 6: Final answer
    x = 92,004.62

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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.