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Finding the Fourth Proportional to 119,396.18, 164,760.23 and 65,672.53

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Solution

The fourth proportional to 119,396.18, 164,760.23 and 65,672.53 is: 90,624.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,396.18 : 164,760.23 = 65,672.53 : x
  2. Step 2: Convert to fraction form
    119,396.18/164,760.23 = 65,672.53/x
  3. Step 3: Cross multiply
    119,396.18x = 164,760.23 × 65,672.53
  4. Step 4: Simplify right side
    119,396.18x = 10,820,220,899.76
  5. Step 5: Solve for x
    x = 10,820,220,899.76/119,396.18
  6. Step 6: Final answer
    x = 90,624.51

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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.