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Finding the Fourth Proportional to 229,618.60, 344,427.90 and 136,076.20

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Solution

The fourth proportional to 229,618.60, 344,427.90 and 136,076.20 is: 204,114.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,618.60 : 344,427.90 = 136,076.20 : x
  2. Step 2: Convert to fraction form
    229,618.60/344,427.90 = 136,076.20/x
  3. Step 3: Cross multiply
    229,618.60x = 344,427.90 × 136,076.20
  4. Step 4: Simplify right side
    229,618.60x = 46,868,439,805.98
  5. Step 5: Solve for x
    x = 46,868,439,805.98/229,618.60
  6. Step 6: Final answer
    x = 204,114.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.