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Finding the Fourth Proportional to 235,271.60, 352,907.40 and 135,738.80

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Solution

The fourth proportional to 235,271.60, 352,907.40 and 135,738.80 is: 203,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,271.60 : 352,907.40 = 135,738.80 : x
  2. Step 2: Convert to fraction form
    235,271.60/352,907.40 = 135,738.80/x
  3. Step 3: Cross multiply
    235,271.60x = 352,907.40 × 135,738.80
  4. Step 4: Simplify right side
    235,271.60x = 47,903,226,987.12
  5. Step 5: Solve for x
    x = 47,903,226,987.12/235,271.60
  6. Step 6: Final answer
    x = 203,608.20

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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.