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Finding the Fourth Proportional to 319,991.70, 441,580.10 and 176,748.66

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Solution

The fourth proportional to 319,991.70, 441,580.10 and 176,748.66 is: 243,908.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,991.70 : 441,580.10 = 176,748.66 : x
  2. Step 2: Convert to fraction form
    319,991.70/441,580.10 = 176,748.66/x
  3. Step 3: Cross multiply
    319,991.70x = 441,580.10 × 176,748.66
  4. Step 4: Simplify right side
    319,991.70x = 78,048,692,503.49
  5. Step 5: Solve for x
    x = 78,048,692,503.49/319,991.70
  6. Step 6: Final answer
    x = 243,908.49

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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.