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Finding the Fourth Proportional to 123,241.84, 170,073.74 and 66,653.22

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Solution

The fourth proportional to 123,241.84, 170,073.74 and 66,653.22 is: 91,981.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,241.84 : 170,073.74 = 66,653.22 : x
  2. Step 2: Convert to fraction form
    123,241.84/170,073.74 = 66,653.22/x
  3. Step 3: Cross multiply
    123,241.84x = 170,073.74 × 66,653.22
  4. Step 4: Simplify right side
    123,241.84x = 11,335,962,487.46
  5. Step 5: Solve for x
    x = 11,335,962,487.46/123,241.84
  6. Step 6: Final answer
    x = 91,981.44

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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.