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Finding the Fourth Proportional to 352,326.33, 528,392.30 and 99,586.89

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Solution

The fourth proportional to 352,326.33, 528,392.30 and 99,586.89 is: 149,352.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,326.33 : 528,392.30 = 99,586.89 : x
  2. Step 2: Convert to fraction form
    352,326.33/528,392.30 = 99,586.89/x
  3. Step 3: Cross multiply
    352,326.33x = 528,392.30 × 99,586.89
  4. Step 4: Simplify right side
    352,326.33x = 52,620,945,359.01
  5. Step 5: Solve for x
    x = 52,620,945,359.01/352,326.33
  6. Step 6: Final answer
    x = 149,352.86

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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.