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Finding the Fourth Proportional to 353,592.09, 530,405.62 and 100,909.82

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Solution

The fourth proportional to 353,592.09, 530,405.62 and 100,909.82 is: 151,369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,592.09 : 530,405.62 = 100,909.82 : x
  2. Step 2: Convert to fraction form
    353,592.09/530,405.62 = 100,909.82/x
  3. Step 3: Cross multiply
    353,592.09x = 530,405.62 × 100,909.82
  4. Step 4: Simplify right side
    353,592.09x = 53,523,136,714.93
  5. Step 5: Solve for x
    x = 53,523,136,714.93/353,592.09
  6. Step 6: Final answer
    x = 151,369.72

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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.