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Finding the Fourth Proportional to 161,506.49, 222,878.72 and 89,884.80

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Solution

The fourth proportional to 161,506.49, 222,878.72 and 89,884.80 is: 124,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,506.49 : 222,878.72 = 89,884.80 : x
  2. Step 2: Convert to fraction form
    161,506.49/222,878.72 = 89,884.80/x
  3. Step 3: Cross multiply
    161,506.49x = 222,878.72 × 89,884.80
  4. Step 4: Simplify right side
    161,506.49x = 20,033,409,396.17
  5. Step 5: Solve for x
    x = 20,033,409,396.17/161,506.49
  6. Step 6: Final answer
    x = 124,040.90

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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.