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Finding the Fourth Proportional to 379,335.92, 569,032.92 and 113,076.08

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Solution

The fourth proportional to 379,335.92, 569,032.92 and 113,076.08 is: 169,622.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,335.92 : 569,032.92 = 113,076.08 : x
  2. Step 2: Convert to fraction form
    379,335.92/569,032.92 = 113,076.08/x
  3. Step 3: Cross multiply
    379,335.92x = 569,032.92 × 113,076.08
  4. Step 4: Simplify right side
    379,335.92x = 64,344,011,984.55
  5. Step 5: Solve for x
    x = 64,344,011,984.55/379,335.92
  6. Step 6: Final answer
    x = 169,622.78

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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.