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Finding the Fourth Proportional to 353,537.80, 530,112.30 and 153,824.20

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Solution

The fourth proportional to 353,537.80, 530,112.30 and 153,824.20 is: 230,651.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,537.80 : 530,112.30 = 153,824.20 : x
  2. Step 2: Convert to fraction form
    353,537.80/530,112.30 = 153,824.20/x
  3. Step 3: Cross multiply
    353,537.80x = 530,112.30 × 153,824.20
  4. Step 4: Simplify right side
    353,537.80x = 81,544,100,457.66
  5. Step 5: Solve for x
    x = 81,544,100,457.66/353,537.80
  6. Step 6: Final answer
    x = 230,651.72

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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.