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Finding the Fourth Proportional to 136,669.80, 205,004.70 and 132,077.10

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Solution

The fourth proportional to 136,669.80, 205,004.70 and 132,077.10 is: 198,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,669.80 : 205,004.70 = 132,077.10 : x
  2. Step 2: Convert to fraction form
    136,669.80/205,004.70 = 132,077.10/x
  3. Step 3: Cross multiply
    136,669.80x = 205,004.70 × 132,077.10
  4. Step 4: Simplify right side
    136,669.80x = 27,076,426,262.37
  5. Step 5: Solve for x
    x = 27,076,426,262.37/136,669.80
  6. Step 6: Final answer
    x = 198,115.65

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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.