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Finding the Fourth Proportional to 352,477.14, 528,657.39 and 115,821.87

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Solution

The fourth proportional to 352,477.14, 528,657.39 and 115,821.87 is: 173,713.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,477.14 : 528,657.39 = 115,821.87 : x
  2. Step 2: Convert to fraction form
    352,477.14/528,657.39 = 115,821.87/x
  3. Step 3: Cross multiply
    352,477.14x = 528,657.39 × 115,821.87
  4. Step 4: Simplify right side
    352,477.14x = 61,230,087,499.12
  5. Step 5: Solve for x
    x = 61,230,087,499.12/352,477.14
  6. Step 6: Final answer
    x = 173,713.64

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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.