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Finding the Fourth Proportional to 353,685.69, 530,611.53 and 117,028.35

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Solution

The fourth proportional to 353,685.69, 530,611.53 and 117,028.35 is: 175,569.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,685.69 : 530,611.53 = 117,028.35 : x
  2. Step 2: Convert to fraction form
    353,685.69/530,611.53 = 117,028.35/x
  3. Step 3: Cross multiply
    353,685.69x = 530,611.53 × 117,028.35
  4. Step 4: Simplify right side
    353,685.69x = 62,096,591,846.88
  5. Step 5: Solve for x
    x = 62,096,591,846.88/353,685.69
  6. Step 6: Final answer
    x = 175,569.99

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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.