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Finding the Fourth Proportional to 379,392.18, 569,015.25 and 176,932.70

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Solution

The fourth proportional to 379,392.18, 569,015.25 and 176,932.70 is: 265,365.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,392.18 : 569,015.25 = 176,932.70 : x
  2. Step 2: Convert to fraction form
    379,392.18/569,015.25 = 176,932.70/x
  3. Step 3: Cross multiply
    379,392.18x = 569,015.25 × 176,932.70
  4. Step 4: Simplify right side
    379,392.18x = 100,677,407,842.49
  5. Step 5: Solve for x
    x = 100,677,407,842.49/379,392.18
  6. Step 6: Final answer
    x = 265,365.01

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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.