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Finding the Fourth Proportional to 202,811.20, 304,245.60 and 62,555.20

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Solution

The fourth proportional to 202,811.20, 304,245.60 and 62,555.20 is: 93,841.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,811.20 : 304,245.60 = 62,555.20 : x
  2. Step 2: Convert to fraction form
    202,811.20/304,245.60 = 62,555.20/x
  3. Step 3: Cross multiply
    202,811.20x = 304,245.60 × 62,555.20
  4. Step 4: Simplify right side
    202,811.20x = 19,032,144,357.12
  5. Step 5: Solve for x
    x = 19,032,144,357.12/202,811.20
  6. Step 6: Final answer
    x = 93,841.68

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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.