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Finding the Fourth Proportional to 353,496.88, 530,176.87 and 137,355.23

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Solution

The fourth proportional to 353,496.88, 530,176.87 and 137,355.23 is: 206,006.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,496.88 : 530,176.87 = 137,355.23 : x
  2. Step 2: Convert to fraction form
    353,496.88/530,176.87 = 137,355.23/x
  3. Step 3: Cross multiply
    353,496.88x = 530,176.87 × 137,355.23
  4. Step 4: Simplify right side
    353,496.88x = 72,822,565,919.53
  5. Step 5: Solve for x
    x = 72,822,565,919.53/353,496.88
  6. Step 6: Final answer
    x = 206,006.25

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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.