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Finding the Fourth Proportional to 136,072.40, 204,094.20 and 42,573.20

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Solution

The fourth proportional to 136,072.40, 204,094.20 and 42,573.20 is: 63,855.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,072.40 : 204,094.20 = 42,573.20 : x
  2. Step 2: Convert to fraction form
    136,072.40/204,094.20 = 42,573.20/x
  3. Step 3: Cross multiply
    136,072.40x = 204,094.20 × 42,573.20
  4. Step 4: Simplify right side
    136,072.40x = 8,688,943,195.44
  5. Step 5: Solve for x
    x = 8,688,943,195.44/136,072.40
  6. Step 6: Final answer
    x = 63,855.29

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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.