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Finding the Fourth Proportional to 123,232.96, 170,060.88 and 66,644.20

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Solution

The fourth proportional to 123,232.96, 170,060.88 and 66,644.20 is: 91,968.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,232.96 : 170,060.88 = 66,644.20 : x
  2. Step 2: Convert to fraction form
    123,232.96/170,060.88 = 66,644.20/x
  3. Step 3: Cross multiply
    123,232.96x = 170,060.88 × 66,644.20
  4. Step 4: Simplify right side
    123,232.96x = 11,333,571,298.90
  5. Step 5: Solve for x
    x = 11,333,571,298.90/123,232.96
  6. Step 6: Final answer
    x = 91,968.67

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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.