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Finding the Fourth Proportional to 183,165.20, 274,780.20 and 64,905.20

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Solution

The fourth proportional to 183,165.20, 274,780.20 and 64,905.20 is: 97,369.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,165.20 : 274,780.20 = 64,905.20 : x
  2. Step 2: Convert to fraction form
    183,165.20/274,780.20 = 64,905.20/x
  3. Step 3: Cross multiply
    183,165.20x = 274,780.20 × 64,905.20
  4. Step 4: Simplify right side
    183,165.20x = 17,834,663,837.04
  5. Step 5: Solve for x
    x = 17,834,663,837.04/183,165.20
  6. Step 6: Final answer
    x = 97,369.28

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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.