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Finding the Fourth Proportional to 352,266, 528,288.08 and 115,553.68

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Solution

The fourth proportional to 352,266, 528,288.08 and 115,553.68 is: 173,294.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,266 : 528,288.08 = 115,553.68 : x
  2. Step 2: Convert to fraction form
    352,266/528,288.08 = 115,553.68/x
  3. Step 3: Cross multiply
    352,266x = 528,288.08 × 115,553.68
  4. Step 4: Simplify right side
    352,266x = 61,045,631,744.13
  5. Step 5: Solve for x
    x = 61,045,631,744.13/352,266
  6. Step 6: Final answer
    x = 173,294.13

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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.