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Finding the Fourth Proportional to 123,241.98, 170,073.84 and 66,653.34

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Solution

The fourth proportional to 123,241.98, 170,073.84 and 66,653.34 is: 91,981.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,241.98 : 170,073.84 = 66,653.34 : x
  2. Step 2: Convert to fraction form
    123,241.98/170,073.84 = 66,653.34/x
  3. Step 3: Cross multiply
    123,241.98x = 170,073.84 × 66,653.34
  4. Step 4: Simplify right side
    123,241.98x = 11,335,989,482.63
  5. Step 5: Solve for x
    x = 11,335,989,482.63/123,241.98
  6. Step 6: Final answer
    x = 91,981.56

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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.