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Finding the Fourth Proportional to 353,762.40, 530,619.30 and 113,872.80

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Solution

The fourth proportional to 353,762.40, 530,619.30 and 113,872.80 is: 170,801.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,762.40 : 530,619.30 = 113,872.80 : x
  2. Step 2: Convert to fraction form
    353,762.40/530,619.30 = 113,872.80/x
  3. Step 3: Cross multiply
    353,762.40x = 530,619.30 × 113,872.80
  4. Step 4: Simplify right side
    353,762.40x = 60,423,105,425.04
  5. Step 5: Solve for x
    x = 60,423,105,425.04/353,762.40
  6. Step 6: Final answer
    x = 170,801.38

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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.