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Finding the Fourth Proportional to 169,466.60, 253,890.06 and 79,343.97

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Solution

The fourth proportional to 169,466.60, 253,890.06 and 79,343.97 is: 118,870.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,466.60 : 253,890.06 = 79,343.97 : x
  2. Step 2: Convert to fraction form
    169,466.60/253,890.06 = 79,343.97/x
  3. Step 3: Cross multiply
    169,466.60x = 253,890.06 × 79,343.97
  4. Step 4: Simplify right side
    169,466.60x = 20,144,645,303.94
  5. Step 5: Solve for x
    x = 20,144,645,303.94/169,466.60
  6. Step 6: Final answer
    x = 118,870.89

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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.