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Finding the Fourth Proportional to 202,991.20, 304,486.80 and 62,749.60

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Solution

The fourth proportional to 202,991.20, 304,486.80 and 62,749.60 is: 94,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,991.20 : 304,486.80 = 62,749.60 : x
  2. Step 2: Convert to fraction form
    202,991.20/304,486.80 = 62,749.60/x
  3. Step 3: Cross multiply
    202,991.20x = 304,486.80 × 62,749.60
  4. Step 4: Simplify right side
    202,991.20x = 19,106,424,905.28
  5. Step 5: Solve for x
    x = 19,106,424,905.28/202,991.20
  6. Step 6: Final answer
    x = 94,124.40

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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.