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Finding the Fourth Proportional to 353,295.60, 530,170.20 and 195,637.20

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Solution

The fourth proportional to 353,295.60, 530,170.20 and 195,637.20 is: 293,581.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,295.60 : 530,170.20 = 195,637.20 : x
  2. Step 2: Convert to fraction form
    353,295.60/530,170.20 = 195,637.20/x
  3. Step 3: Cross multiply
    353,295.60x = 530,170.20 × 195,637.20
  4. Step 4: Simplify right side
    353,295.60x = 103,721,013,451.44
  5. Step 5: Solve for x
    x = 103,721,013,451.44/353,295.60
  6. Step 6: Final answer
    x = 293,581.39

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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.