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Finding the Fourth Proportional to 162,675.72, 244,171.13 and 78,495.08

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Solution

The fourth proportional to 162,675.72, 244,171.13 and 78,495.08 is: 117,818.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,675.72 : 244,171.13 = 78,495.08 : x
  2. Step 2: Convert to fraction form
    162,675.72/244,171.13 = 78,495.08/x
  3. Step 3: Cross multiply
    162,675.72x = 244,171.13 × 78,495.08
  4. Step 4: Simplify right side
    162,675.72x = 19,166,230,769.71
  5. Step 5: Solve for x
    x = 19,166,230,769.71/162,675.72
  6. Step 6: Final answer
    x = 117,818.63

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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.