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Finding the Fourth Proportional to 353,375.33, 530,068.62 and 87,135.93

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Solution

The fourth proportional to 353,375.33, 530,068.62 and 87,135.93 is: 130,705.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,375.33 : 530,068.62 = 87,135.93 : x
  2. Step 2: Convert to fraction form
    353,375.33/530,068.62 = 87,135.93/x
  3. Step 3: Cross multiply
    353,375.33x = 530,068.62 × 87,135.93
  4. Step 4: Simplify right side
    353,375.33x = 46,188,022,167.52
  5. Step 5: Solve for x
    x = 46,188,022,167.52/353,375.33
  6. Step 6: Final answer
    x = 130,705.28

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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.