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Finding the Fourth Proportional to 134,641.20, 201,961.80 and 41,134.80

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Solution

The fourth proportional to 134,641.20, 201,961.80 and 41,134.80 is: 61,702.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,641.20 : 201,961.80 = 41,134.80 : x
  2. Step 2: Convert to fraction form
    134,641.20/201,961.80 = 41,134.80/x
  3. Step 3: Cross multiply
    134,641.20x = 201,961.80 × 41,134.80
  4. Step 4: Simplify right side
    134,641.20x = 8,307,658,250.64
  5. Step 5: Solve for x
    x = 8,307,658,250.64/134,641.20
  6. Step 6: Final answer
    x = 61,702.20

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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.