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Finding the Fourth Proportional to 203,484.72, 280,819.80 and 118,596.72

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Solution

The fourth proportional to 203,484.72, 280,819.80 and 118,596.72 is: 163,669.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,484.72 : 280,819.80 = 118,596.72 : x
  2. Step 2: Convert to fraction form
    203,484.72/280,819.80 = 118,596.72/x
  3. Step 3: Cross multiply
    203,484.72x = 280,819.80 × 118,596.72
  4. Step 4: Simplify right side
    203,484.72x = 33,304,307,191.06
  5. Step 5: Solve for x
    x = 33,304,307,191.06/203,484.72
  6. Step 6: Final answer
    x = 163,669.82

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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.