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Finding the Fourth Proportional to 175,203.20, 262,804.80 and 140,211.20

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Solution

The fourth proportional to 175,203.20, 262,804.80 and 140,211.20 is: 210,316.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,203.20 : 262,804.80 = 140,211.20 : x
  2. Step 2: Convert to fraction form
    175,203.20/262,804.80 = 140,211.20/x
  3. Step 3: Cross multiply
    175,203.20x = 262,804.80 × 140,211.20
  4. Step 4: Simplify right side
    175,203.20x = 36,848,176,373.76
  5. Step 5: Solve for x
    x = 36,848,176,373.76/175,203.20
  6. Step 6: Final answer
    x = 210,316.80

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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.