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Finding the Fourth Proportional to 123,690.88, 170,693.48 and 67,102.25

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Solution

The fourth proportional to 123,690.88, 170,693.48 and 67,102.25 is: 92,601.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,690.88 : 170,693.48 = 67,102.25 : x
  2. Step 2: Convert to fraction form
    123,690.88/170,693.48 = 67,102.25/x
  3. Step 3: Cross multiply
    123,690.88x = 170,693.48 × 67,102.25
  4. Step 4: Simplify right side
    123,690.88x = 11,453,916,232.82
  5. Step 5: Solve for x
    x = 11,453,916,232.82/123,690.88
  6. Step 6: Final answer
    x = 92,601.14

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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.