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Finding the Fourth Proportional to 352,311.93, 528,467.90 and 102,993.93

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Solution

The fourth proportional to 352,311.93, 528,467.90 and 102,993.93 is: 154,490.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,311.93 : 528,467.90 = 102,993.93 : x
  2. Step 2: Convert to fraction form
    352,311.93/528,467.90 = 102,993.93/x
  3. Step 3: Cross multiply
    352,311.93x = 528,467.90 × 102,993.93
  4. Step 4: Simplify right side
    352,311.93x = 54,428,985,384.88
  5. Step 5: Solve for x
    x = 54,428,985,384.88/352,311.93
  6. Step 6: Final answer
    x = 154,490.90

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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.