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Finding the Fourth Proportional to 134,580.80, 201,482.40 and 82,092.80

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Solution

The fourth proportional to 134,580.80, 201,482.40 and 82,092.80 is: 122,902.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,580.80 : 201,482.40 = 82,092.80 : x
  2. Step 2: Convert to fraction form
    134,580.80/201,482.40 = 82,092.80/x
  3. Step 3: Cross multiply
    134,580.80x = 201,482.40 × 82,092.80
  4. Step 4: Simplify right side
    134,580.80x = 16,540,254,366.72
  5. Step 5: Solve for x
    x = 16,540,254,366.72/134,580.80
  6. Step 6: Final answer
    x = 122,902.04

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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.