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Finding the Fourth Proportional to 352,314.30, 528,489.24 and 99,612.94

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Solution

The fourth proportional to 352,314.30, 528,489.24 and 99,612.94 is: 149,424.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,314.30 : 528,489.24 = 99,612.94 : x
  2. Step 2: Convert to fraction form
    352,314.30/528,489.24 = 99,612.94/x
  3. Step 3: Cross multiply
    352,314.30x = 528,489.24 × 99,612.94
  4. Step 4: Simplify right side
    352,314.30x = 52,644,366,954.77
  5. Step 5: Solve for x
    x = 52,644,366,954.77/352,314.30
  6. Step 6: Final answer
    x = 149,424.44

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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.