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Finding the Fourth Proportional to 356,887.72, 535,357.50 and 107,589.16

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Solution

The fourth proportional to 356,887.72, 535,357.50 and 107,589.16 is: 161,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,887.72 : 535,357.50 = 107,589.16 : x
  2. Step 2: Convert to fraction form
    356,887.72/535,357.50 = 107,589.16/x
  3. Step 3: Cross multiply
    356,887.72x = 535,357.50 × 107,589.16
  4. Step 4: Simplify right side
    356,887.72x = 57,598,663,724.70
  5. Step 5: Solve for x
    x = 57,598,663,724.70/356,887.72
  6. Step 6: Final answer
    x = 161,391.55

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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.