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Finding the Fourth Proportional to 136,548.30, 204,822.45 and 113,220.30

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Solution

The fourth proportional to 136,548.30, 204,822.45 and 113,220.30 is: 169,830.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,548.30 : 204,822.45 = 113,220.30 : x
  2. Step 2: Convert to fraction form
    136,548.30/204,822.45 = 113,220.30/x
  3. Step 3: Cross multiply
    136,548.30x = 204,822.45 × 113,220.30
  4. Step 4: Simplify right side
    136,548.30x = 23,190,059,235.74
  5. Step 5: Solve for x
    x = 23,190,059,235.74/136,548.30
  6. Step 6: Final answer
    x = 169,830.45

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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.