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Finding the Fourth Proportional to 219,320.64, 302,676.48 and 123,792.48

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Solution

The fourth proportional to 219,320.64, 302,676.48 and 123,792.48 is: 170,841.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,320.64 : 302,676.48 = 123,792.48 : x
  2. Step 2: Convert to fraction form
    219,320.64/302,676.48 = 123,792.48/x
  3. Step 3: Cross multiply
    219,320.64x = 302,676.48 × 123,792.48
  4. Step 4: Simplify right side
    219,320.64x = 37,469,072,096.87
  5. Step 5: Solve for x
    x = 37,469,072,096.87/219,320.64
  6. Step 6: Final answer
    x = 170,841.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.